In what direction is the gradient present for CO₂ in the body?

In what direction is the gradient present for CO₂ in the body?
  1. From blood to alveoli
  2. From alveoli to blood
  3. From tissues to alveoli
  4. From alveoli to tissues

Solution

A gradient is present for CO₂ in the body in the opposite direction, i.e., from blood to alveoli.

Asked in: NCERT

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