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Carlos is studying a cell under a microscope. He observes the structure

that allows things in and out of the cell. What is this called? *
Cell membrane
Cytoplasm
Chlorplasts
Nucleus

User Melisha
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2 Answers

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Cell membrane.

The cell membrane encompasses the whole cell. There are transport proteins on the cell membrane which allow things to enter and exit the cell. Some things can pass through the membrane without the need for transport proteins.
User Akavel
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Cell membrane is the answer
User Gnur
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