Which of the following statements is false?

(1) The breakdown of most of biomacromolecules occurs in duodenum

(2) Simple substances (digested foods) are absorbed in the jejunum and ileum

(3) Very significant digestive activity occurs in large intestine

(4) Undigested and unabsorbed substances are passed on to the large intestine

Subtopic:  Movement of Food in Gut |
 78%
From NCERT
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The undigested substance (faeces) enter into the ________ of large intestine through ________ valve which prevents backflow of faecal matter:

(1) Caecum, ileo-caecal

(2) Colon, ileo-colon valve

(3) Rectum, Recto-colonic

(4) Colon, pyloric valve

 

Subtopic:  Swallowing: Histology of Gut |
 82%
From NCERT
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In addition to neural control, hormones also influence the:

(1) Gastric secretions

(2) Intestinal secretions

(3) Muscular activities of different parts of alimentary canal

(4) All are correct

 90%
From NCERT
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Fructose and some amino acids are absorbed by:

(1) Active transport

(2) Diffusion

(3) Facilitated transport

(4) Osmosis

Subtopic:  Absorption: Part 1 | Absorption |
 84%
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Which of the following statement is wrong about chylomicrons?

I. Chylomicrons are produced in the epithelial cells of small intestine

II. It contains triglycerides, cholesterol and phospholipids

III. It is protein coated small vesicles

IV. Chylomicrons released from the epithelial cell into lacteals

(1) I and IV

(2) II and III

(3) I, II, III and IV 

(4) None of the above

Subtopic:  Absorption: Part 2 | Absorption |
From NCERT
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Gastric juice does not contain:

(1) Lipase

(2) Rennin

(3) Protease

(4) Amylase

Subtopic:  Gastric Secretions |
 63%
From NCERT
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Enterokinase is:

(1) A hormone that prevents the secretion of gastric juice

(2) An enzyme that activates the enzyme of pancreatic juice

(3) An enzyme that activates the proteolytic enzymes of succus entericus

(4) Hormone that prevents the secretion of pancreatic juice

Subtopic:  Intestinal Secretions |
 72%
From NCERT
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The sphincter of Oddi is present between:

(1) Oesophagus and cardiac stomach

(2) Pyloric stomach and duodenum

(3) Hepatic duct and cystic duct

(4) Hepatopancreatic duct and duodenum

 

Subtopic:  Pancreatic Secretions |
 84%
From NCERT
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If for some reason the parietal cells of the gastric epithelium become partially non-functional, what is likely to happen?

(1) The pancreatic enzymes and specially the trypsin and lipase will not work efficiently

(2) The pH of stomach will fall abruptly

(3) Steapsin be more effective

(4) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones

Subtopic:  Gastric Secretions |
 76%
From NCERT
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What are the tiny finger-like projections called that are inside the small intestine? These tiny finger-like projections absorb the nutrients form the food and send the vitamins, minerals, proteins, carbohydrates and fats into our bloodstream:

(1) Esophagus

(2) Arteries

(3) Villi

(4) Flagella

Subtopic:  Absorption: General Adaptations |
 97%
From NCERT
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