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Breathing and Exchange of Gases

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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. A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2
    1. acts as a reserve during muscular exercise
    2. raise the pCO2 of blood to 75 mm of Hg.
    3. is enough to keep oxyhaemoglobin saturation at 96%
    4. helps in releasing more O2 to the epithelial tissues.
Correct Option: A

A large portion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2 acts as a reserve during muscular exercise.


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