The layer of cells that secret enamel of tooth is: 

1. dentoblast

2. ameloblast

3. osteoblast

4. odontoblast

The contraction of gall bladder is due to

1. gastrin

2. secretin

3. cholecystokinin

4. enterogasterone

Brunner's glands occur in

1. sub-mucosa of duodenum

2. sub-mucosa of stomach

3. mucosa of oesophagus

4. mucosa of ileum

During prolonged fasting, in what sequence are the following organic compounds used up by the body ?

1. First carbohydrates, next proteins and lastly lipids

2. First proteins, next lipids and lastly carbohydrates

3. First carbohydrates, next fats and lastly proteins

4. First fats, next carbohydrates and lastly proteins

Duodenum has characteristic Brunner's glands which secret two hormones called 

1. kinase, estrogen

2. secretin, cholecystokinin

3. prolactin, parathromone

4. estradion, progesterone

Pancreas produces 

1. three digestive enzymes and one hormone

2. three digestive enzymes and two hormones

3. two digestive enzymes and one hormone

4. three digestive enzymes and no hormone

Carrier proteins faciliate the absorption of substance like

1. amino acids and glucose

2. glucose and fatty acids

3. fatty acids and glycerol

4. fructose and some amino acids

The vitamin-C or ascorbic acid prevents 

1. rickets

2. pellagra

3. scurvy

4. antibody synthesis

Which group of three of the following five statements (A-E) contains all three correct statements regarding beri-beri ? 

A. A crippling disease prevalent among the native population of sub-Sahara Africa

B. A deficiency disease caused by lack of thiamine (vitamin-B,)

C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein

D. Occurs in those countries where the staple diet is polished rice

E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure

1. A, B and D

2. B, C and E

3. A, C and E

4 B, D and E

Which one of the following is a fat-soluble vitamin and it's related deficiency disease? 

1. Ascorbic acid     - Scurvy

2. Retinol              - Xerophthlmia

3. Cobalamine       - Beri-beri

4. Calciferol          - Pellagra