Multiple choice

Mammals drink water and also get it from

  1. breakdown of glycogen into glucose

  2. secretion of saliva

  3. oxidation of glucose

  4. conversion of oxyhemoglobin to hemoglobin

  5. digestion of fats

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oxidation of glucose releases water and carbon dioxide. This water is utilised in the body and carbon dioxide is released outside through the lungs.