Digestive Enzymes in the Stomach

Q. Choose the correct enzyme – substrate pair.

1. carbohydrate – lipase
2. maltase – lactose
3. rennin – casein
4. protein – amylase

Q. Gastric juice does not contain

1. amylase
2. rennin
3. lipase
4. pepsinogen

Q.

Where is pepsinogen produced?

Q. Initial digestion of milk in mammals is carried out by

1. Pepsin
2. Chymosin
3. Carboxypeptidase
4. Chymotrypsin

Q. Initial digestion of milk in mammals is carried out by

1. Pepsin
2. Chymosin
3. Carboxypeptidase
4. Chymotrypsin

Q. The initial step in the digestion of milk in humans is carried out by

1. lipase
2. pepsin
3. rennin
4. trypsin

Q. Which of the following hormones is secreted by the gastric gland?

1. Secretin
2. Cholecystokinin
3. Gastrin
4. Duocrinin

Q. Curdling of milk in the stomach occurs by the action of

1. rennin
2. trypsin
3. erepsin
4. chymotrypsin

Q. Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?

1. Duodenum: Triglycerides, trypsin monoglycerides
2. Small intestine: Starch and amylase disaccharide (maltose)
3. Stomach: Proteins, pepsin, amino acids
4. Stomach: Fats, Lipase, Micelles

Q.

Chief cells secrete____________

1. mucus

2. pepsinogen

3. pepsin

4. rennin

Q. A reduction of __ in the gastric juice secretion may give rise to peptic ulcers.

1. HCl
2. Mucus
3. Pepsin
4. Rennin

Q. Which of the following hormones is secreted by the gastric gland?

1. Secretin
2. Cholecystokinin
3. Gastrin
4. Duocrinin