Epithelial cells ofthe intestine involved in food absorption have on their surface

• pinocytic vesicles

• phagocytic vesicles

• zymogen granules

• micro-villi

Secretin and cholecystokinin are digestive hormones. They are secreted in

• oesophagus

• ileum

• duodenum

• pyloric stomach

33.

Secretion of gastric juice is stimulated by

• pepsin

• gastrin

• renin

• secretin

The true stomach in ruminants where most of digestion takes place is

• rumen

• omasum

• reticulum

• abomasum

Pepsin is inactivated at pH

• below 3

• below 2

• above 5

• above 3

Which one affects liver, muscle and adipose tissue?

• Androgen

• Insulin

• Progesterone

• Glucagon

In the wall of alimentary canal, what is the actual sequence from outer to inner

• serosa, longitudinal muscle, mucosa, submucosa

• mucosa, serosa, long muscle

• serosa, long muscle, circular, submucosa, mucosa

• serosa, long muscle, submucosa, mucosa

Bile helps in the digestion of fat through

• emulsification

• alkalinity

• forming micelles

• All of these

Which of the following represents the dental formula of man?

• $\frac{0.0.3.3}{3.1.3.3}$

• $\frac{2.0.3.3}{1.0.2.3}$

• $\frac{2.1.2.3}{2.1.2.3}$

• $\frac{1.0.0.3}{1.0.0.3}$

A secretion that digests both carbohydrates and proteins is

• ptyalin

• pepsin

• pancreatic juice

• saliva