What is the percentage of lipids in the chemical composition of plasma membrane?
Correct answer: B. 20-40%
- A. 60-80%
- B. 20-40%
- C. 40-80%
- D. 20-60%
Explanation
The plasma membrane is the outermost covering of an animal cell. Cell membrane is composed of lipids and proteins;60-80% are proteins, while 20-40% are lipids.
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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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