Which one is not a component of the endoplasmic reticulum?
Correct answer: A. Carboxylic acids
- A. Carboxylic acids
- B. Carbohydrates
- C. Proteins
- D. Lipids
Explanation
The endoplasmic reticulum (ER) is the site of protein and lipid synthesis and carbohydrate metabolism. It is mainly composed of a high percentage of proteins, with enzymes, cholesterol, triglycerides, and phospholipids in lower percentages.Carboxylic acids are absent.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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