Which organelle is responsible for lipid synthesis and lacks ribosomes?

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Multiple Choice

Which organelle is responsible for lipid synthesis and lacks ribosomes?

Explanation:
Lipids are made by enzymes in the smooth endoplasmic reticulum, which also helps detoxify certain compounds. The smooth ER has no ribosomes on its surface, so it doesn’t synthesize proteins there. In contrast, the rough endoplasmic reticulum is studded with ribosomes and specializes in producing membrane and secreted proteins. Mitochondria focus on energy production and have their own ribosomes, but lipid synthesis isn’t their primary role. Lysosomes are digestive organelles with hydrolytic enzymes. Therefore, the organelle described is the smooth endoplasmic reticulum.

Lipids are made by enzymes in the smooth endoplasmic reticulum, which also helps detoxify certain compounds. The smooth ER has no ribosomes on its surface, so it doesn’t synthesize proteins there. In contrast, the rough endoplasmic reticulum is studded with ribosomes and specializes in producing membrane and secreted proteins. Mitochondria focus on energy production and have their own ribosomes, but lipid synthesis isn’t their primary role. Lysosomes are digestive organelles with hydrolytic enzymes. Therefore, the organelle described is the smooth endoplasmic reticulum.

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