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nmdcat.online June 27, 2026

The function of the smooth endoplasmic reticulum (SER) in relation to lipids is its involvement in the

A. Synthesis of phospholipids and steroids
✓
B. Packaging of triglycerides for storage
C. Breakdown of lipids by beta-oxidation
D. Glycosylation of membrane proteins

📝 Explanation

The enzymes responsible for the synthesis of phospholipids (the major membrane lipid) and steroids (including cholesterol and steroid hormones) are located primarily in the membrane of the smooth ER. It is therefore a major site of lipid biosynthesis.

📖 Additional Information

  • Synthesis of phospholipids and steroids
  • Packaging of triglycerides for storage
  • Breakdown of lipids by beta-oxidation
  • Glycosylation of membrane proteins

The enzymes responsible for the synthesis of phospholipids (the major membrane lipid) and steroids (including cholesterol and steroid hormones) are located primarily in the membrane of the smooth ER. It is therefore a major site of lipid biosynthesis.

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