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Which cellular organelle is responsible for lipid synthesis in eukaryotic cells?

  1. Chromatin

  2. Diaphysis

  3. Smooth endoplasmic reticulum

  4. Stroma

The correct answer is: Smooth endoplasmic reticulum

The Smooth Endoplasmic Reticulum (SER) is responsible for lipid synthesis in eukaryotic cells. Chromatin is responsible for storing and organizing genetic information, Diaphysis is a part of bone anatomy, and Stroma is a part of the chloroplast in plant cells. Therefore, these options are incorrect and only the SER is directly involved in lipid synthesis.