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प्रश्न
Describe protein digestion in the human.
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उत्तर
Digestion of proteins in humans:
There is no digestion of protein in the oral cavity because protein digestive enzymes are absent in the saliva.
1. Digestion of protein in the stomach:
Gastric juice contains HCl and two proenzyme, pepsinogen and prorennin. HCI maintains a pH of 2 - 3.7 and kills bacteria and other pathogens. Gastric juice mixes with food until it becomes semi-solid mass called Chyme. Proenzymes become activated as below:
These enzymes act as follows:
2. Digestion of protein the small intestine
Action of pancreatic juice. It contains proenzymes trypsinogen, chymotry-psinogen and procarboxy peptidase.
Action of intestinal juice. Intestinal juice contains endokinase, aminopeptidase and dipeptidase. Actions of these enzymes are summarized below:
Peptides —Aminopentidase _. cm aller peptides + Amino acid
Peptides —Dipentidase_. amino acid
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संबंधित प्रश्न
Pancreas, Gall bladder, Glomerulus, Liver
Name any four life processes in living things.
What substances are contained in pancreatic juice? What are their functions?
What is the special name of the contraction and expansion movement which pushes the food further in our digestive tract (or alimentary canal)?
Which of the following is the correct sequence of parts as they occur in the human alimentary canal?
(a) Mouth → Stomach → Small intestine → Oesophagus → Large intestine
(b) Mouth → Oesophagus → Stomach → Large intestine → Small intestine
(c) Mouth → Stomach → Oesophagus → Small intestine → Large intestine
(d) Mouth → Oesophagus → Stomach → Small intestine → Large intestine
Gastric juice contains
Why is the small intestine the most important organ of the digestive system?
Study the Following Dental Formula and Then Answer the Question that Follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Give the dental formula of an adult human being.
List two different functions performed by the pancreas in our body.
The teeth called canines are a total of four in number on the sides of ______.
Given alongside is the diagram of the human alimentary canal.
(i) Name the parts 1-11 indicated by guidelines.
1.____ 2.____ 3.____ 4.____ 5.____ 6.____ 7.____ 8.____ 9.____ 10.___ 11.____
(ii) State the function of the juice secreted by the part 1.
(iii) State the function of the three enzymes found in the juice secreted by part 3.
How is the small intestine best suited for the digestion and absorption of food?
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
Write true or false for the below statement. Rewrite the false statements correctly.
The wave-like motion of stomach muscles to push the food is called peristalsis.
Correct the spellings: Ptorein
Which sphincter guards the opening of the hepato-pancreatic duct?
Secretions of ____________ lubricate the lumen of the alimentary canal.
The contraction and expansion movement of the walls of the food pipe is called ____________.
The exit of unabsorbed food material is regulated by ____________.
