Teeth of rabbits are :

• thecodont

• diphyodont

• heterodont

• all of these

112.

Which of the following teeth are lophodont?

• Incisor and canine

• Canine and premolar

• Premolar and molar

• Premolar and incisor

Which of the following digestive juices has the minimum pH value?

• Bile

• Gastric juice

• Saliva

• Pancreatic juice

Choose the wrong statement among the following

• Trypsinogen is activated by enterokinase

• The optimum pH for salivary amylase activity is 8.9

• Rennin helps in the digestion of milk proteins

• Goblet cells secrete mucous 8.9

• Goblet cells secrete mucous 8.9

Chylomicrons are

• small fat globules coated with protein

• protein molecules coated with fat

• small granules found in gastric juice

• neural signals that stimulate, intestinal secretions

• neural signals that stimulate, intestinal secretions

The secretions of the brush border cells of the intestinal mucosa along with the secretion of goblet cells constitute the

• succus entericus

• chyme

• gastric juice

• chylomicrons

• chylomicrons

Choose the correct statement among the following

• The intestional mucosal epithelium has oxynitic cells

• Ptyalin converts proteins into proteoses and peptones

• Crypts of Lieberkuhn is seen between the bases of villi in the intestine

• Sphincter of Oddi is present at the junction of oesophagus and cardiac stomach

• Sphincter of Oddi is present at the junction of oesophagus and cardiac stomach

Identify the correctly matched structure and its secretion

• Brunner's gland - Salivary amylase

• Intestinal mucosa - Insulin

• Gall bladder - Bile

• Salivary gland - Lysozyme

• Salivary gland - Lysozyme

The entry of food into the larynx is prevented by

• Mitral valve

• Diaphragm

• Epiglottis

• Hyoid

• Hyoid

Read the following reactions and choose the correct option

(1) Pepsinogen $\stackrel{\mathrm{HCl}}{\to }$ Pepsin

(2) Proteins $\stackrel{\mathrm{Pepsinogen}}{\to }$ Proteases + peptones

(3) Trypsinogen $\stackrel{\mathrm{HCl}}{\to }$ Trypsin

(4) Chymotrypsinogen $\stackrel{\mathrm{Enterokinase}}{\to }$ Chymotrypsin

(5) Peptones $\stackrel{\mathrm{Trypsin}}{\to }$ Dipeptides

• (1) and (5) alone are correct

• (3) and (5) alone are correct

• (3) and (5) alone are correct

• (2), (4) and (5) alone are correct

• (2), (4) and (5) alone are correct