QUES 1. Vitamins are
Accessory food factors
Generally synthesized in the body
Produced in endocrine glands
Proteins in nature
QUES 2. Vitamin A or retinal is a
Benzoquinone derivative
6-Hydroxychromane
Steroid
Polyisoprenoid compound containing a cyclohexenyl ring
QUES 3. β-Carotene, precursor of vitamin A, is oxidatively cleaved by
β-Carotene dioxygenase
Oxygenase
Hydroxylase
Transferase
QUES 4. Preformed Vitamin A is supplied by
All yellow vegetables
Leafy green vegetables
Milk, fat and liver
All yellow fruits
QUES 5. Fat soluble vitamins are
Soluble in alcohol
one or more Propene units
Stored in liver
All of these
QUES 6. Retinol is transported in blood bound to
Aporetinol binding protein
α2-Globulin
β-Globulin
Albumin
QUES 7. The normal serum concentration of vitamin A in mg/100 ml is
5–10
15–60
100–150
0–5
QUES 8. Vitamin D absorption is increased in
Acid pH of intestine
Alkaline pH of intestine
Impaired fat absorption
Contents of diet
QUES 9. Calcitriol synthesis involves
Both liver and kidney
Intestine
Adipose tissue
QUES 10. Vitamin K is found in
Meat
Green Leafy Vegetables
Fish
Milk