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Questions and Answers
What is the main cause of macrocytic anemia in case of vitamin B12 deficiency?
What is the main cause of macrocytic anemia in case of vitamin B12 deficiency?
- Normal functioning of erythroblasts
- Increased life span of erythroblasts
- Failure of nuclear maturation and division of erythroblasts (correct)
- Decreased number of erythroblasts
How is vitamin B12 absorbed in the body?
How is vitamin B12 absorbed in the body?
- By diffusion in the stomach
- By binding to transferrin in the liver
- Through passive absorption in the large intestine
- Through active transport in the lower ileum with intrinsic factor (correct)
What is the specific role of intrinsic factor in the absorption of vitamin B12?
What is the specific role of intrinsic factor in the absorption of vitamin B12?
- It binds to specific receptors in the lower ileum along with vitamin B12 (correct)
- It binds to folic acid to enhance absorption
- It converts vitamin B12 into a form suitable for absorption
- It helps in the endocytosis of vitamin B12
Which deficiency also leads to macrocytic anemia and is similar in action to vitamin B12 deficiency?
Which deficiency also leads to macrocytic anemia and is similar in action to vitamin B12 deficiency?
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How does iron absorption occur in the body?
How does iron absorption occur in the body?
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What must happen to dietary iron before it can be absorbed?
What must happen to dietary iron before it can be absorbed?
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In iron absorption, what is the role of gastric HCl and vitamin C?
In iron absorption, what is the role of gastric HCl and vitamin C?
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What is the function of folic acid in relation to erythropoiesis?
What is the function of folic acid in relation to erythropoiesis?
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How is folic acid deficiency related to anemia?
How is folic acid deficiency related to anemia?
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