Assimilation in Biology: Incorporating Nutrients into Tissues

Steps:

• Define assimilation as the anabolic process of using absorbed nutrients to build complex molecules for growth and repair.
• Evaluate option A: Involves nutrient uptake, not building.
• Evaluate option B: Describes breakdown, which is catabolic.
• Evaluate option C: Matches building complex structures from simple units.
• Evaluate option D: Involves release, unrelated to incorporation.

Why C is correct:

• Assimilation is the constructive phase of metabolism where amino acids link via peptide bonds to form proteins, per anabolic pathways in cellular biology.

Why the others are wrong:

• A: Absorption of glycerol into lacteals is nutrient transport, not incorporation into tissues.
• B: Glycogen breakdown to glucose is digestion or catabolism, releasing energy.
• D: Hormone release from glands is secretion or endocrine function, not nutrient building.

Final answer: C