Question

the nutrient responsible for growth and repair of muscle and other tissue is...
a) carbohydrate
b) fat
c) protein
d) water

Explanation:

To determine the nutrient for tissue growth/repair:

• Carbohydrates (A) provide energy, not tissue repair.
• Fat (B) stores energy, insulates, etc., not tissue repair.
• Protein (C) is made of amino acids, essential for building/repairing muscle and other tissues (e.g., enzymes, hormones, cell structures).
• Water (D) is for hydration, transport, but not tissue growth/repair.

Answer:

C. protein