Storage Functions of the Liver

Question 1

what is ferritin?

Answer 1

blood protein that contains iron

Question 2

which vitamins are water soluble?

Answer 2

Vitamins B & C

Question 3

which vitamins are fat soluble?

Answer 3

vitamins A, D, E & K

Question 4

which vitamins require more regular intake?

Answer 4

Vitamins B & C

Question 5

what is vitamin A also known as?

Answer 5

retinoid

Question 6

what are the sources of vitamin A?

Answer 6

1. meat

2. produce retinal from carotenes (e.g. carrots, leafy greens)

Question 7

what are the functions of vitamin A?

Answer 7

1. vision (forms rhodopsin)
2. reproduction (spermatogenesis, prevention of foetal resorption)
3. growth
4. stabilisation of cellular membranes

Question 8

what are the functions of vitamin D?

Answer 8

1. increases intestinal absorption of Ca2+
2. resorption and formation of bone
3. reduces renal excretion of Ca2+

Question 9

what are the functions of vitamin E?

Answer 9

antioxidant

Question 10

what are the sources of the types of vitamin K?

Answer 10

K1 - synthesised by plants
K2 - synthesised by intestinal bacteria
K3 - synthetic
K4 - synthetic

Question 11

what are the functions of vitamin K?

Answer 11

1. activation of blood clotting factors

2. liver synthesis of plasma clotting factors II, VII, IX & X

Question 12

what are the sources of vitamin C?

Answer 12

fresh fruit and veg

Question 13

what are the functions of vitamin C?

Answer 13

1. collagen synthesis
2. antioxidant
3. iron absorption

Question 14

what are the sources of vitamin B12?

Answer 14

diet

Question 15

what is needed for vitamin B12 absorption?

Answer 15

intrinsic factor

Question 16

what are the functions of folate?

Answer 16

Coenzyme in:

1. methylation reactions
2. DNA synthesis

Question 17

where are clotting factors produced?

Answer 17

liver