Vitamin B12 Metab

Question 1

What test is done for vitamin b12

Answer 1

Schilling test

Question 2

Schilling test specifically checks

Answer 2

Folate and cobalamin absorption

Question 3

Pernicious anaemia is an auto immune attack on

Answer 3

Gastric mucosa and
Parietal cells

Question 4

Pernicious anaemia is characterized by the absence of

Answer 4

Hcl (achlodyria)
And IF INTINSIC FACTOR

Question 5

Vitamin b12 causes

Answer 5

Megaloblastic anaemia

And neurotic problems

Question 6

Vitamin b12 deficiency leading to neurotic problems is characterized by what action

Answer 6

B12 is a cofactor too the conversion of homocysteine to methionine

B12 is also used to produce myelin sheath and it’s absence leads to sclerosis

Question 7

Vitamin b12 is transported in the body by

Answer 7

Transcobalamin

Question 8

Vitamin b12 is absent in vegans because

Answer 8

B12 is only gotten from animal

Not from fruits cereal or vegetables

Question 9

What transport b12 from the mouth to the duodenum

Answer 9

Heptocorrin

Question 10

B12 digest where

Answer 10

Ileum

Question 11

B12 forms a complex with IF by binding to what on IF

Answer 11

Cubulin