Answer: Cell membrane is layer which is present in all living cells. It is present under the cell wall but in some cases such as plant cells.
Explanation: It is composed of lipid bilayer and proteins embedded in it. Phospholipids, glycolipids and sterols is the composition. Its function is to protect the cell from extracellular environment. It is semipermeable membrane that js allow only selected molecules to pass.
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The red dot is filled. The other red dot is filled because
The nucleus is responsible for storing dna as well as the instuctions for protein synthesis
All eukaryote cells lack a nucleus
