Cholecystokinin and duocrinin are secreted by

1. adrenal cortex

2. thyroid gland

3. pancreas

4. intestine

Inhibition of gastric and stimulation of gastric, pancreatic and bile secretions are controlled by hormones 

1. gastrin, secretin, enterokinin and cholecystokinin

2. enterogasterone, gastrin, pancreozymin and cholecystokinin

3. gastrin, enterogasterone, cholecystokinin and pancreozymin

4. secretin, enterogasterone, gastrin and enterokinin

Stool of a person contains whitish grey colour due to malfunction of which type of organ ?

1. Pancreas

2. Spleen

3. Kidney

4. Liver

A patient is generally advised to especially, consume more meat, lentils, milk and eggs in diet only when he suffers from 

1. kwashiorkor

2. rickets

3. anaemia

4. scurvy

What is common among amylase, rennin and trypsin ? 

1. These all are proteins

2. These all are proteolytic enzymes

3. These are produced in stomach

4. These act as a pH lower than 7

Which one of the following is a matching pair of a substrate and its particular digestive enzyme? 

1. Maltose     - Maltase

2. Lactose     - Renin     

3. Starch       - Steapsin

4. Casein       - Chymotrypsin

Most of the digestion occurs in 

1. rectum

2. stomach

3. duodenum

4. small intestine

Which one of the following vitamin can be synthesised by bacteria inside the gut? 

1. B

2. D

3. C

4. Both b and c

The richest sources of vitamin-B₁₂ are 

1. goat's liver and Spirulina

2. chocolate and green gram

3. rice and hen's egg

4. carrot and chicken's breast

Which one of the following pairs of food components in humans reaches the stomach totally undigested? 

1. Protein and starch

2. Starch and fat

3. Fat and cellulose

4. Starch and cellulose