KMC Block A Past Paper PDF

## Following are the symptoms of Stress, Except: - Fatigue - Rapid breathing - Rapid heart rate ## All of the following are correct as median food disputes, except: - Disputed identity - Disputed race - Disputed paternity - Search of blood ## The commonest cause of preventable anemia in childre...

## Following are the symptoms of Stress, Except: - Fatigue - Rapid breathing - Rapid heart rate ## All of the following are correct as median food disputes, except: - Disputed identity - Disputed race - Disputed paternity - Search of blood ## The commonest cause of preventable anemia in children is: - Folic acid deficiency anemia ## Decrease in size of a cell by loss of cell substance is known as: - Atrophy ## A 23-years old medical student develops "red" face after being asked a question during a lecture. Which of the following statements best describes the vascular reaction? - Active hyperemia ## While preparing her lunch, a housewife nicks her finger with a knife. Seconds after the injury, the bleeding stops. Which of the following mechanisms most likely reduced blood loss from a small dermal arteriole? - Platelets aggregation ## A middle-age man went through orthopaedic surgery for a fractured hip bone. In order to prevent the occurrence of thromboembolic disease, he was put on an oral “blood thinner” (anticoagulant), Warfarin. Which of the following coagulation factors are inhibited by this drug? - Factors II, VII, IX & X ## Which group of the global population is most affected by anemia? - Preschool children ## Folic acid supplement is given during pregnancy to prevent: - Megaloblastic anemia ## A 3-years old child touches a lit candle and within several hours there is marked erythema of skin of the fingers, child left hand and small blisters appear on finger pads. Which of the following term best describes the process? - Ulceration ## Epidemiological triad includes: - Environment, vector, host ## A teacher is delivering a physiology lecture to the 1st year students. Which one of the following best describes the type of communication taking place in the scenario? - Informational communication ## A young Physiologist was searching in his Laboratory for finding the specific mechanism for transport of Vitamin B12 across cell membranes. Which of the following mechanisms of cellular transport of drugs might be his ultimate finding? - Facilitated diffusion ## A patient diagnosed with stomach cancer asks his treating doctor about his condition and treatment options. Which one of the following is not the essential component of effective communication between the treating doctor and the patient? - Confidentiality ## A 3-years old child touches a lit candle and within several hours there is marked erythema of skin of the fingers, child left hand and small blisters appear on finger pads. Which of the following term best describes the process? - Ulceration ## Folic acid supplement is given during pregnancy to prevent: - Megaloblastic anemia ## A boy who is allergic to cats visits a friend who keeps several pet cats. During the visit, he inhales cat dander and within minutes develops nasal congestion and abundant nasal secretions. Which of the following substance is most likely to produce these findings? - Histamine ## A 3 days old baby boy was brought to the hospital. His mother complains of oozing of blood from his umbilicus. According to his mother, it was normal home delivery without any complications. On examination the child was pale but otherwise normal. What can be the possible cause of bleeding in the child? - Vit K deficiency ## There are two kinds of nucleic acids in the cell, RNA and DNA. Both are polymers built from monomers called NUCLEOTIDES. However, there are some differences in the structure of RNA and DNA according to their functions. RNA instability in alkaline solutions is due to: - Single stranded structure of RNA ## The fluidity of the plasma membrane increases with: - Increase in unsaturated fatty acids in the membrane ## Proton pump inhibitors are a mainstay in the treatment of peptic ulcer disease and inhibit the gastric hydrogen ATPase. ATPases are in a class of enzymes that catalyze the hydrolysis of a high energy bond in adenosine triphosphate (ATP) to form adenosine diphosphate (ADP) and a free phosphate ion. The hydrogen ATPase in the gastric mucosal parietal cell utilizes this energy to exchange one hydrogen ion from the cytoplasm for one extracellular potassium ion. What type of transport is this enzyme catalyzing? - Antiport coupled transport ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Epimers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black. The iodine solution remains the same color (it doesn't change colors). What do Julian's results show about the permeability of the tubing? - The dialysis tubing is permeable to iodine but not to starch ## The capillary action increases with: - Decrease in the diameter of the tube ## Vitamin B-7 or biotin is a water soluble vitamin. Its deficiency is rare as it is widely distributed in nature. However if the person is consuming too much raw egg white in the diet, which glycoprotein can affect biotin absorption from small intestine resulting in biotin deficiency? - Avidin ## A buffer solution is a solution which tends to maintain its pH when small amount of either an acid or base is added to it. Bicarbonate/Carbonic acid buffer system is the most important buffer of the ECF. Regarding this buffer, the ratio of HCO3- to H2CO3 is: - 20:1 ## Thiamine or anti beri beri vitamin is one of the first organic compounds to be discovered as vitamin. Thiamin forms a co-enzyme TPP in the body. It's deficiency is more common in people consuming rice as a staple diet. If it is deficient, concentration of which of the following will be increased in the blood? - Lactate ## Two sugars which differ from one another only in configuration around a single carbon atom are termed: - Anomers ## Cyclic AMP is a nucleotide derivative which acts as a second messenger for hormones. Which of the following characteristics of cAMP contributes the most to this biological function? - It can activate protein kinases A ## A 3 months old infant is brought to the hospital with fever and difficulty in breathing. The history reveals premature birth at 27 weeks of gestation and previous hospitalization for urinary tract infections. Which of the following immunoglobulins is most likely deficient in this patient? - Immunoglobulin A ## The ability of niacin to take part in redox reactions depends upon which of the following characteristics? - It can exist as NAD and NADP forms ## Vitamin B5 or pantothenic acid is a water soluble vitamin. In the body, it forms Co-enzyme A. A lack of vitamin B5 in the diet, would most directly affect the reaction catalyzed by which one of the following enzymes? - Pyruvate dehydrogenase ## The glycosaminoglycan which does not contain uronic acid is: - Keratan sulphate ## A Patient of 20 years, strict vegetarian presented with anemia whose peripheral blood smear demonstrated hypersegmented neutrophils. CBC shows HB 9.5g/dl. MCV and MCH both were raised. What could be the possible cause of his condition? - Vitamin B12 deficiency ## Vitamin B6 is a water soluble vitamin. In the body it forms PLP co-enzyme, which plays an important role in amino acid metabolism. If it is deficient in the body, it can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of which of the following: - Tryptophan ## Which one of the following proteins is an intracellular iron storage protein capable of binding to (encapsulating) more than 100 iron atoms? - Ferritin ## A male suffering from hemophilia (effectively being treated by periodic injections of clotting factors) desires to have a child. Genetic tests of his wife show that she is not a carrier of the hemophilia trait (either type A or type B). If the couple has a baby girl, what is the probability that she will be a carrier of the hemophilia trait? - 0% ## During resting condition, there is a slight excess of negative charge inside the cell membrane. This is due to: - Unequal distribution of K+ ions ## Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing