Document Details

MedPrime

Uploaded by MedPrime

New Mansoura University

Tags

blood plasma proteins biology medical science

Summary

This document is a question bank covering blood and plasma proteins. It includes multiple choice questions and explanations related to these topics.

Full Transcript

Part One: Simple MCQs 1. What is the average blood volume in a 70 kg man? a) 4500 ml b) 5600 ml c) 6300 ml d) 7000 ml 2. Which of the following is NOT a general function of blood? a) Transport of O2 and CO2 b) Production of hormones c) Regulation of body temperature d) Defense against microorgan...

Part One: Simple MCQs 1. What is the average blood volume in a 70 kg man? a) 4500 ml b) 5600 ml c) 6300 ml d) 7000 ml 2. Which of the following is NOT a general function of blood? a) Transport of O2 and CO2 b) Production of hormones c) Regulation of body temperature d) Defense against microorganisms 3. What is the normal range of WBC count in blood? a) 4,000-11,000/cmm b) 150,000-300,000/cmm c) 5.4 millions/cmm in males d) 4.8 millions/cmm in females 4. Where are most plasma proteins synthesized? a) Liver b) Kidneys c) Spleen d) Bone marrow 5. What is the main function of albumin in blood? a) Blood clotting b) Oxygen transport c) Maintaining blood volume d) Immune defense 6. Which plasma protein is responsible for transporting iron? a) Transferrin b) Albumin c) Fibrinogen d) Ceruloplasmin 7. What is the normal albumin/globulin ratio (A/G ratio)? a) 0.5-1.0 b) 1.2-1.6 c) 2.0-2.5 d) 3.0-3.5 8. In which condition would you expect a decreased A/G ratio? a) Starvation b) Dehydration c) Congenital agammaglobulinemia d) Polycythemia 9. What is the main contributor to blood viscosity among plasma proteins? a) Albumin b) Globulins c) Fibrinogen d) Prothrombin 10. Which of the following is NOT a function of plasma proteins? a) Transport of hormones b) Regulation of blood pH c) Production of red blood cells d) Maintenance of capillary permeability answers 👍 Part One 1. b 2. b 3. a 4. a 5. c 6. a 7. b 8. a 9. c 10. c Part Two: Complex MCQs 1. A patient presents with edema (swelling) in their legs. Which of the following physiological mechanisms is most likely impaired? a) Decreased blood viscosity b) Reduced oncotic pressure c) Increased capillary permeability d) Elevated blood pH 2. A patient with severe liver disease is expected to have which of the following laboratory findings? a) Increased albumin levels b) Decreased globulin levels c) Elevated A/G ratio d) Reduced blood clotting ability 3. During starvation, the body primarily relies on which source for plasma protein synthesis? a) Dietary proteins b) Tissue proteins c) Stored glycogen d) Fatty acids 4. A patient with a chronic infection is likely to have an increase in which type of globulin? a) Alpha globulins b) Beta globulins c) Gamma globulins d) Delta globulins 5. Why is it important for lipid-soluble substances like hormones and vitamins to bind to plasma proteins for transport? a) To increase their solubility in blood b) To prevent their rapid excretion by the kidneys c) To enhance their uptake by target cells d) All of the above 6. How do plasma proteins contribute to the buffering capacity of blood? a) By acting as strong acids or bases b) By releasing hydrogen ions into the blood c) By binding to excess carbon dioxide d) By containing acidic and basic groups that can accept or donate protons 7. A decrease in blood pH would lead to which of the following changes in plasma protein behavior? a) Increased negative charge b) Decreased buffering capacity c) Binding to more sodium ions d) Reduced ability to transport substances 8. What is the physiological significance of the 'labile reserve proteins' in the liver? a) They act as a long-term energy store b) They are involved in immune defense c) They can be rapidly mobilized to replace plasma proteins in case of acute loss d) They regulate blood glucose levels 9. Explain the concept of the dynamic state of plasma proteins. a) Plasma proteins are constantly being broken down and resynthesized b) Plasma proteins remain unchanged throughout their lifespan c) Plasma proteins are only synthesized during periods of growth d) Plasma proteins are primarily obtained from the diet 10. How does the transport of carbon dioxide by plasma proteins differ from its transport by red blood cells? a) Plasma proteins carry CO2 as carbamino compounds, while RBCs carry it as bicarbonate ions b) Plasma proteins carry CO2 as bicarbonate ions, while RBCs carry it as carbamino compounds c) Both plasma proteins and RBCs carry CO2 primarily as dissolved gas d) Plasma proteins do not participate in CO2 transport 11. What is the relationship between plasma proteins and tissue proteins? a) They are completely independent of each other b) Tissue proteins are derived solely from plasma proteins c) There is a reversible equilibrium between plasma proteins and tissue proteins d) Plasma proteins are broken down into tissue proteins 12. A patient with nephrotic syndrome loses large amounts of albumin in their urine. What would be the expected consequence? a) Increased blood volume b) Decreased oncotic pressure c) Elevated A/G ratio d) Enhanced blood clotting 13. How does blood viscosity affect blood pressure? a) Increased viscosity leads to decreased blood pressure b) Decreased viscosity leads to increased blood pressure c) Increased viscosity leads to increased blood pressure d) Blood viscosity has no effect on blood pressure 14. Which of the following scenarios would lead to an increase in the A/G ratio? a) Severe infection b) Liver cirrhosis c) Kidney failure d) Congenital agammaglobulinemia 15. What is the role of the complement system in immunity? a) It directly attacks and destroys pathogens b) It enhances the activity of antibodies and phagocytic cells c) It regulates the production of white blood cells d) It transports antibodies in the blood Answer Guide Part Two 1. b 2. d 3. b 4. c 5. d 6. d 7. c 8. c 9. a 10. a 11. c 12. b 13. c 14. d 15. b Done

Use Quizgecko on...
Browser
Browser