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3 years ago

12

What are the two primary roles of the cell membrane?

1 answer:

Marizza181 [45]3 years ago

7 0

Answer:

(1) they keep toxic substances out of the cell; (2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment

Explanation:

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