vitamin

Question 1

sources of vitamin a

Answer 1

liver
cod liver oil carrots
pumpkin
green vegetables like spinach

Question 2

functions of vitamin a

Answer 2

helps to keep skin cornea and mucus membranes healthy
helps vision in dim light
strengthens immune syste,

Question 3

deficiency of vitamin a

Answer 3

dry unhealthy skin and cornea
increased susceptibility to infection
reduced vision at night or complete night blindness
xerophthalmia eyes fail to produce tears leading to a dry damaged cornea and sometimes blindness

Question 4

sources of b1

Answer 4

whole grain cereals and bread
brown rice
peas
beans
nuts
yeast extract
lean pork

Question 5

functions of b1`

Answer 5

aids in respiration to produce energy
important for proper functioning of nervous system

Question 6

deficiency of b1

Answer 6

beri beri weakness and pain in the limb muscles
difficulty walking
nervous system disorders
paralysis

Question 7

sources of b3

Answer 7

fish
lean meats
whole grain cereals
yeast extract

Question 8

functions of b3

Answer 8

aids in respiration to produce energy

Question 9

deficiency of b3

Answer 9

pellagra skin digestive system and nervous system disorders resulting in dermatitis diarrhoea and dementia

Question 10

sources of c

Answer 10

west indian cherries
citrus fruits
raw green vegetables

Question 11

functions of c

Answer 11

keeps tissues healthy especially skin and connective tissue
strengthens immune system

Question 12

deficiency of c

Answer 12

scurvy swollen and bleeding gums loose teeth or loss of teeth red blue spots on the skin muscle and joint pain wounds do not heal

increased susceptibility to infection

Question 13

sources of d

Answer 13

oily fish
eggs
cod liver oil
made in the body by the action of sunlight on the skin

Question 14

functions of d

Answer 14

promotes the absorption of calcium and phosphorous in the ileum
helps build and maintain strong bones and teeth
strengthens the immune system

Question 15

deficiency of d

Answer 15

rickets in children soft weak painful deformed bones especially limb bones bow legs
osteomalacia in adults
soft weak painful bones that fracture easily weakness of limb muscles
poor teeth

Question 16

surplus of vitamin a

Answer 16

liver damage
jaundice
itchy skin
cracked fingernails
blurry vision
nausea headaches
fatigue

Question 17

surplus vitamin d

Answer 17

high levels of calcium in the blood
excessive thirst and urination
loss of appetite
nausea
vomiting
calcification of soft tissues eg kidneys lungs and inside blood vessels
development of kidney stones