Vitamins

Question 1

Vitamin A

1. Name
2. Sources
3. Functions
4. Effect of deficiency

Answer 1

1. Retinol
2. Liver, milk, yellow and green vegetables
3. • Keeps skin and mucous membranes healthy
   • Anti- oxidant
4. • Night blindness
     - dryness of cornea

Question 2

Vitamin D

1. Name
2. Sources
3. Functions
4. Effect of deficiency

Answer 2

1. Calciferol
2. Fish oil, egg yolk, butter and milk
3. Promotes strong teeth and bones
4. • Rickets
     - weak bones in adults

Question 3

Vitamin K

1. Name
2. Sources
3. Functions
4. Effect of deficiency

Answer 3

1. …
2. Provided by intestinal bacteria, leafy vegetables
3. Synthesis of proteins for clotting of blood
4. Clotting of blood hampered

Question 4

Vitamin C

1. Name
2. Sources
3. Functions
4. Effect of deficiency

Answer 4

1. Ascorbic acid
2. Citrus fruit, strawberries, tomatoes, cabbage, leafy vegetables
3. • maintains health of blood vessels
     - maintains connective tissues
4. • Scurvy
     - healing of wounds slow
     - poor growth

Question 5

Vitamin B3

1. Name
2. Sources
3. Functions
4. Effect of deficiency

Answer 5

1. Niacin
2. Meat, whole grain, liver, orange juice
3. Co-enzyme in amino acid metabolism
   - production of co- enzyme A
4. • Reactions in cells are blocked
     - leads to damage in all tissues