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Option 1 : Pepsin
The correct answer is Option 1 i.e. Pepsin.
Pepsin:
- Pepsin is the digestive enzyme that breaks down proteins.
- The Gastric Glands secrete the enzyme Pepsin.
- Gastric glands are found in the stomach.
- They secrete enzymes like Pepsin, Rennin which act upon the Proteins.
- Glands in the mucous-membrane which line the stomach make and store an inactive protein known as pepsinogen.
- When pepsinogen is released into the stomach and mixed with gastric juice, it is converted into pepsin.
- Pepsin partially degrades proteins into smaller units called peptides.
Renin:
- It is also known as Chymosin.
- The structure of Renin contains 340 amino acids. It helps in coagulating milk.
- Large amounts of this enzyme are secreted in the stomach of infant mammals.
- It is also present in the stomach of cud-chewing animals.
Amylase:
- Salivary amylase is an enzyme present in the human saliva which is produced by the salivary glands.
- It helps in the process of digestion as it breaks down complex carbohydrates such as starch into simpler sugars like glucose and maltose.
Note: Trypsin is also secreted by the Salivary glands in our mouth.
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