Tag: parts of the digestive system

Questions Related to parts of the digestive system

One of the- following is needed for the conversion of trypsinogen into trypsin  _____________.

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. HCI

  2. Enterokinase

  3. Lipase

  4. Zymase

Show answer
Correct Option: B
Explanation:

In the presence of enterokinase, inactive trypsinogen is converted into active trypsin.

So, the correct answer is 'Enterokinase'

Secretion of gastric juice is stopped by _________.

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Gastrin

  2. Pancreazymin

  3. Cholecystokinin

  4. Enterogastrone

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Correct Option: D

Which enzyme initiates protein digestion?

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Pepsin

  2. Trypsin

  3. Aminopeptidase

  4. Carboxypeptidase

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Correct Option: A

Rennin acts on ______________________.

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Milk changing casein into calcium paracaseinate at 7.2 8.2 pH

  2. Proteins in stomach

  3. Fat in intestine

  4. Milk changing casein into calcium paracaseinate at 1 3 pH

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Correct Option: D

Which pair reaches the stomach totally undigested?

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Fat, cellulose

  2. Starch, cellulose

  3. Protein, starch

  4. Starch, fat

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Correct Option: A

Which gastric secretion is correctly matched with its source

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Pepsin Chief cells

  2. Chymotrypsin Parietal cells

  3. HCl Goblet cells

  4. Mucus Oxyntic cells

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Correct Option: A

Semi-indispensible amino acids are

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Arginine and histidine

  2. Methionine and threonine

  3. Leucine and isoleucine

  4. Arginine and lysine

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Correct Option: A

Three major types of cells in stomach are ________________.

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. Mucous cells, chief cells, oxyntic cells

  2. Mucous cells, chief cells, enteroendocrine cells

  3. Mucous cells, enteroendocrine cells, oxyntic cells

  4. Enteroendocrine cells, chief cells, oxyntic cells

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Correct Option: A

Gastric juice contains

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. HCl and pepsin

  2. pepsin and trypsin

  3. trypsin and HCI

  4. amylopsin and pepsin

Show answer
Correct Option: A
Explanation:

Gastric juice comprising a mixture of substances, including pepsin and hydrochloric acid, secreted by glands of the stomach. Its principal function is to break down proteins into polypeptides during digestion.

Hence, the correct answer is 'HCl and pepsin'

Enzyme pepsin in the gastric juice helps in the digestion of :-

parts of the digestive system digestive system of human human digestive system digestion and absorption biology nutrition deficiency diseases digestive system

  1. carbohydrates

  2. fats

  3. nucleic acids

  4. proteins

Show answer
Correct Option: D
Explanation:

Pepsin is the chief digestive enzyme in the stomach that stomach that breaks down proteins. Cells produce pepsinogen that is produced to act on mucus by epithelial cells of the stomach that helps to protect the lining of the stomach from corrosive hydrochloric acid and pepsin.

So, the correct option is 'Proteins'.