Biochemistry - Mock Test 67

Question 661

Histidine is converted into histamine by?

A) Carboxylation B) Decarboxylation C) Methylation D) Hydroxylation

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Question 662

All of the following statements about pancreatic somatostain are true except?

A) It is secreted by δ cells of islets of Langerhans B) It stimulates the secretion of gastrin C) It inhibits the secretion of secretin D) It inhibits the secretion of cholecystokininpancreozymin

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Question 663

All of the following statements about cholecystokinin pancreozymin are true except?

A) It is secreted by mucosa of small intestine B) It stimulates secretion of pancreatic juice rich in enzymes C) It stimulates contraction of gall bladder D) It inhibits gastric motility

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Question 664

Secretin causes all of the following except?

A) Secretion of pancreatic juice B) Secretion of bile C) Inhibition of gastric secretion D) Stimulation of intestinal motility

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Question 665

Secretin is made up of?

A) 17 amino acids B) 27 amino acids C) 37 amino acids D) 47 amino acids

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Question 666

Gastrin stimulates?

A) Gastric motility B) Gastric secretion C) Both A and B D) None of these

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Question 667

Secretion of gastrin is evoked by?

A) Entry of food into stomach B) Vagal stimulation C) Lower aliphatic alcohols D) All of these

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Question 668

Pentagastrin is a?

A) Naturally occurring form of gastrin B) Inactive metabolite of gastrin C) Active metabolite of gastrin D) Synthetic form of gastrin

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Question 669

The number of intra-chain disulphide bonds in pro-insulin?

A) One B) Two C) Three D) Four

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Question 670

Pre-proinsulin contains a signal sequence having?

A) 9 amino acid residues B) 19 amino acid residues C) 27 amino acid residues D) 33 amino acid residues

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