30 Questions
Which plasma protein has the highest molecular weight?
Fibrinogen
Where are the gamma globulins synthesized?
Plasma cells in lymphatic tissues
Which condition leads to a decrease in the Albumin-Globulin Ratio (A/G ratio)?
Severe infections
During which condition do tissue proteins act as a source for plasma proteins?
Starvation
Which plasma protein is primarily responsible for regulating blood volume and interstitial fluid formation?
Albumin
What is the main consequence of decreased A/G ratio due to liver disease?
Decreased formation of globulins
What is the main function of blood in the body?
Acting as a carrier medium for substances and hormones
Which component of blood is responsible for the stoppage of bleeding when a blood vessel is injured?
Fibrinogen
What is the role of white blood cells in blood?
Defending against micro-organisms
Which type of plasma protein is subdivided into categories such as alpha and beta globulins?
Globulins
How does blood help in maintaining the internal environment of the body?
By continuous exchange of substances between blood and interstitial fluid
Which of the following is NOT a function of blood?
Producing albumin
What is the main cause of blood viscosity?
Plasma proteins
Why is plasma protein important in preventing rapid loss of substances in urine?
They have a large molecular size and cannot be easily filtered
What is the function of plasma proteins in transporting lipids and free fatty acids?
They make lipids miscible with water
What happens when bone marrow is destroyed by irradiation, chemicals, or toxins?
Deficiency of all blood cells
Where is 10% of erythropoietin formed in the body?
Liver
What is the main component for the formation of the globin portion of hemoglobin?
Iron
What is the main function of red blood corpuscles (RBCs)?
Carry oxygen from the lungs to the tissues
Which enzyme found in red blood corpuscles helps in transporting CO2 from tissues to lungs?
Carbonic anhydrase
What is the role of hemoglobin in the blood?
Act as an acid-base buffer
What is the average hemoglobin concentration in adult men?
15-16 gm/dl
Which part of hemoglobin combines with oxygen molecules?
Heme
Why are red blood corpuscles not considered true cells?
They lack nuclei
Which type of hemoglobin represents the main hemoglobin in the fetus?
Hb F (2 α + 2 γ chains)
What leads to certain types of anemia such as thalassemia?
Decreased or absent α or β chains
Which type of hemoglobin has greater affinity to O2 than Hb A?
Hb F (2 α + 2 γ chains)
What is the most important feature of hemoglobin?
Ability to combine reversibly with Fe++ in the Heme
Which abnormality results from abnormal production of α or β chains due to gene mutation?
Sickle cell anemia
What is the classification of Hb A2 based on its polypeptide chains?
2 α + 2 δ chains
Test your knowledge on blood viscosity and the transport and conservation functions of blood, including the role of red blood cells, plasma proteins like Fibrinogen, and the carrier function of plasma proteins for important substances such as hormones and vitamins.
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