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CBSE

Subject

Biology
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NEET Biology : Digestion and Absorption

Multiple Choice Questions

111.

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



112.

Which of the following teeth are lophodont?

  • Incisor and canine

  • Canine and premolar

  • Premolar and molar

  • Premolar and incisor



113.

Read the following reactions and choose the correct option

(1) Pepsinogen HCl Pepsin

(2) Proteins Pepsinogen Proteases + peptones

(3) Trypsinogen HCl Trypsin

(4) Chymotrypsinogen Enterokinase Chymotrypsin

(5) Peptones Trypsin 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



114.

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



115.

Teeth of rabbits are :

  • thecodont

  • diphyodont

  • heterodont

  • all of these



116.

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



117.

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

  • Bile

  • Gastric juice

  • Saliva

  • Pancreatic juice



118.

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



119.

The entry of food into the larynx is prevented by

  • Mitral valve

  • Diaphragm

  • Epiglottis

  • Hyoid

  • Hyoid



120.

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



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