Question

which of the following serves as the site for the synthesis of phospholipids? a plasma membrane b rough endoplasmic reticulum c smooth endoplasmic reticulum d golgi apparatus

Explanation:

• Option A: The plasma membrane is mainly for cell - environment separation and transport, not phospholipid synthesis.
• Option B: The rough endoplasmic reticulum has ribosomes and is mainly involved in protein synthesis, not phospholipid synthesis.
• Option C: The smooth endoplasmic reticulum (SER) is known to be the site for lipid (including phospholipid) synthesis. Phospholipids are important components of cell membranes, and the SER is specialized in lipid - related synthetic processes.
• Option D: The Golgi apparatus is mainly for modifying, sorting, and packaging proteins and lipids (after they are synthesized elsewhere), not for synthesizing phospholipids.

Answer:

C. Smooth endoplasmic reticulum