Metabolic Water from Sugar Oxidation

Question

Metabolic water produced by oxidation of 1 gram of sugar is:

Select an answer

Metabolic water produced by oxidation of 1 gram of sugar is:

  1. 0.60 g — Correct Answer
  2. 0.40 g
  3. 1.07 g
  4. None
Explanation:
Correct Answer: 0.60 g

Metabolic water is the water produced inside the body as a by-product of oxidative metabolism of nutrients. Oxidation of 1 g of glucose (sugar) yields 0.60 g of metabolic water.

Metabolic Water — Complete Table
Substrate Metabolic Water Produced per gram
Glucose / Sugar 0.60 g
Starch 0.56 g
Protein 0.40 g
Fat 1.07 g (highest — fat is most H-rich)
Key Facts about Metabolic Water
  • Metabolic water comprises 5–10% of total water intake
  • Fat produces the most metabolic water (1.07 g/g) — important for desert animals like camels
  • Metabolic water = water released from oxidative phosphorylation reactions
Why Other Options Are Wrong
  • 0.40 g → metabolic water from protein oxidation, not sugar
  • 1.07 g → metabolic water from fat oxidation, not sugar
  • None → incorrect; metabolic water values are well-established

📚 About this Topic — Animal Nutrition

This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.

Author Avatar
Anvi Classes

Anvi classes for Current Affairs, GK, and General Studies MCQs. Prepare for UPSC, SSC, and other competitive exams with our comprehensive quizzes.