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Q.17 What substances are contained in gastric juice? What are their functions?
OR
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?



Answer :

Final answer:

Gastric juice contains hydrochloric acid and pepsin, playing important roles in the digestive process.


Explanation:

Substances contained in gastric juice: Gastric juice contains hydrochloric acid (HCl) and digestive enzymes like pepsin. Functions: HCl helps create an acidic environment for digestion and activates pepsinogen to pepsin, aiding in protein breakdown.


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