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amm1812
3 years ago
11

What is a cell membrane?​

Biology
2 answers:
Lostsunrise [7]3 years ago
8 0

The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.

Semenov [28]3 years ago
4 0

Answer:

The cell-membrane or plasma membrane surrounds nucleus and cytoplasm in all types of cells. However in bacteria and plants,plasma membrane itself is surrounded by a cell-wall.It can repair itself to some extent.Different models have been presented to understand the structure of cell membrane.

Explanation:

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A teacher thinks that students do better on tests when they get to write essays instead of multiple choice. He thinks this becau
Juli2301 [7.4K]

Answer:

A teacher thinks that students do better on tests when they get to write essays instead of multiple choice. He thinks this because the students can explain their reasoning. On multiple choice questions, students cannot do that and he cannot give students partial credit. The teacher gives one class multiple choice questions and the other essay questions. He compares the scores after each class. Identify the: INDEPENDENT VARIABLE, DEPENDENT VARIABLE, HYPOTHESIS, EXPERIMENTAL GROUP, and CONTROL GROUP.

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Explanation:

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The image below may help you (ʘᴗʘ✿)...

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