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NEST2025BiologyBreathing and Exchange of Gases

The oxygen dissociation curve (as percentage saturation versus p O₂ of blood) of haemoglobin for a healthy adult individual is shown in the graph. P , Q and R in the graph, respectively, represent pO ₂ of blood in:

Options

  1. Aveins (post-exercise); veins (at rest); arteries
  2. Barteries; veins (at rest); veins (post-exercise)
  3. Carteries; veins (post-exercise); veins (at rest)
  4. Dveins (at rest); veins (post-exercise); arteries

Correct answer

A. veins (post-exercise); veins (at rest); arteries

Step-by-step solution

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