Question

which of the following is not a function of lipids? enzyme catalysis cell membrane structure hormone production insulation

Explanation:

To determine which is not a function of lipids, we analyze each option:

• Cell membrane structure: Lipids (phospholipids) are a major component of cell membranes, so this is a lipid function.
• Hormone production: Lipids like steroids are involved in hormone production (e.g., cholesterol is a precursor to steroid hormones), so this is a lipid function.
• Insulation: Lipids (e.g., fat) provide insulation in organisms, so this is a lipid function.
• Enzyme catalysis: Enzymes are typically proteins (or sometimes RNA), and lipids do not act as enzymes to catalyze reactions. So enzyme catalysis is not a function of lipids.

Answer:

Enzyme catalysis