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Digestion and Absorption

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Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
Reproductive Health
  1. Renin acts on
    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.
Correct Option: D

Renin acts on milk protein casein & changes it into paracasein spontaneously precipitating into insoluble calcium paracaseinate, forming solid curd or coagulated milk. Renin is present in the gastric juice and hence works in highly acidic pH (due to HCl) in stomach (about 1-3 pH) and is absent in adult human being.


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