Question

which of the following choices does not correctly match the nutrient with one of its primary functions
a: B12 the risk of deficiency is increased in the elderly
b: thiamin:those who abuse alcohol or at particularly high risk of a deficiency
c: folate: deficiency impairs hemoglobin synthesis
D folic acid deficiency during pregnancy increases the risk of a neural tube defects in the infant

Answer 1

a. It is very common the risk of B12 deficiency in the olderly people. It affects 5-15% of elderly people. So option 'a' is wrong answer.

c. deficiency of folate inhibits purine and thymidylate synthesis, which impairs DNA synthesis and causes erythroblast apoptosis, which results in anemia due to ineffective erythropoiesis which in turn occurs due to the insufficient synthesis of Hemoglobin which again occurs due to the deficiency of folate. So option'c' is the wrong answer.

d. Low folic acid intake during pregnancy and in the first stages of life may result in the neural tube defects in infants. Neural tube defects are the birth defects that affects the brain and spinal cord. So option 'd' also is the wrong answer.

b. There is no relation that the alcohol abuse and thiamin deficiecy are related. Hence the statement given in option 'b' does not properly match with the choice of nutrient as its primary function.

So option 'b' is the correct answer.