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Last updated date: 24th Nov 2023
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MVSAT Dec 2023

Organelle connected with the lipid synthesis is
A. Ribosome
C. Golgi apparatus
D. All of the above

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Hint: Lipid metabolism is the production and degradation of lipids in cells, including the breakdown or storage of energy fats and the production of structural and functional lipids, such as those involved in the construction of cell membranes.

Complete Answer:
- Lipogenesis is a mechanism that synthesises these fats. The bulk of lipids found in the human body from food intake are triglycerides and cholesterol.
- Other forms of lipids present in the body include fatty acids and membrane lipids. Lipid metabolism is also considered to be the mechanism of digestion and absorption of dietary fats; however, there are two sources of fat that can be used by organisms to produce energy: from ingested dietary fats and from stored fat.
- Vertebrates (including humans) use all fat sources to provide energy for organs such as the heart to operate.
- As lipids are hydrophobic molecules, they need to be solubilized before their metabolism can begin. Lipid metabolism also starts with hydrolysis, which occurs with the aid of different enzymes in the digestive system.
- Lipid metabolism also occurs in plants, although processes vary in certain respects from animals.The second stage following hydrolysis is the incorporation of fatty acids into the epithelial cells of the intestinal wall.In epithelial cells, fatty acids are packaged and transferred to the rest of the body.
- The outer (cytosolic) face of the rough endoplasmic reticulum is studded with ribosomes that are protein synthesis sites. The smooth endoplasmic reticulum lacks ribosomes and functions in lipid synthesis, but not metabolism, steroid hormone production, and detoxification.

Thus the correct answer is Option (B) SER.

Note: Smooth endoplasmic reticulum (abbreviated SER) is scarce in most cells. Instead, there are regions where the ER is partly smooth and partly rough, the region is referred to as the transitional ER.Smooth endoplasmic reticulum is present in a number of cell types (both animal and plant) and has different roles in each cell. The smooth endoplasmic reticulum also contains the glucose-6-phosphatase enzyme, which converts glucose-6-phosphate to glucose, a step in gluconeogenesis.