Multiple choice

Which among the following statements does NOT characterise cellular respiration?

  1. In the mitochondria of the cells, oxygen is consumed and carbon dioxide is produced.

  2. Blood with haemoglobin is able to transport 26 times more oxygen than plasma without haemoglobin.

  3. Each body cell releases carbon dioxide into nearby capillaries by perfusion.

  4. The body cells uses ATP for all metabolic reactions.

  5. The capillaries are permeable to oxygen.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Each body cell releases carbon dioxide into nearby capillaries by diffusion, because the level of carbon dioxide is higher in the body cells than in the blood. In the capillaries, some of the carbon dioxide is dissolved in plasma and some is taken by the haemoglobin, but most enters the red blood cells where it binds with water to form carbonic acid.

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