Chemistry

Chemistry, 02.07.2019 06:30, khalilattalah

Can be compared to a gate because it protects the cell and keeps substances from entering and leaving the cell

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Biology, 09.07.2019 09:50, gbrightwell

The primary function of the cell's membrane is to: provide support and shape prevent chemicals from entering the cell prevent chemicals from leaving the cell selectively permit or restrict substances from entering or leaving the cell

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Biology, 21.08.2019 11:20, jayyla32

Cell membranes are said to be selectively permeable. which statement best explains what selectively permeable means? (1) the cell membrane prevents any harmful substance from entering the cell. (2) the cell membrane lets certain substances enter the cell and keeps certain substances out of the cell. (3) the cell membrane allows only large molecules to diffuse into the cell. (4) the cell membrane has pores that let only water and glucose into the cell and carbon dioxide out

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Biology, 13.10.2019 03:50, MicarriHarris6122

The cell membrane plays an role in the transport of substances into and out of cells. which is an example of passive transport? water molecules entering a cell through the pores in the membrane food molecules entering a cell via a food vacuole formed by the membrane potassium ions entering a cell through proteins in the membrane requiring the use of atp glucose entering a cell through proteins in the membrane from areas of higher concentration

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Biology, 15.10.2019 02:30, austinmontgomep7foxp

What would happen if the cell membrane were completely made of a polar substance? a. the cell would be unable to maintain a stable internal environment. b. the cell would need to use more facilitated diffusion c. the cell would stop all substances from entering d. the cell would not be able to produce vacuoles.

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