Question

Lipid molecules in a cell are synthesized by

• A. Smooth endoplasmic reticulum
• B. Golgi apparatus
• C. Rough endoplasmic reticulum
• D. Plastids

Answer 1

The correct option is A

Smooth endoplasmic reticulum

The correct option is option A.

The explanation of the correct option:

1. The Smooth endoplasmic reticulum synthesizes lipid molecules in the cell.
2. The rough endoplasmic reticulum synthesizes proteins, the Golgi apparatus synthesizes complex sugars, and plastids participate in carbohydrate production via photosynthesis.
3. The smooth ER is in charge of lipid production, including phospholipids and cholesterol.
4. Smooth ER is also in charge of the synthesis and secretion of steroid hormones.
5. It is also responsible for glucose metabolism.
6. The smooth ER stores and releases calcium ions. These are necessary for the nervous and muscular systems.

The explanation of the incorrect options:

option B:

The rough endoplasmic reticulum is responsible for protein synthesis.

option C:

The Golgi machinery produces complex sugars.

option D:

Plastids are involved in the photosynthesis of carbohydrates.

Final answer: Lipid molecules in a cell are synthesized by the Smooth endoplasmic reticulum.