Why is a cell membrane's job so important?

Answer 1

its important because it transports molecules and materials into the cell and out of the cell.

Answer 2

To frame it as simply as possible it is important in the same way a space suit is important to an astronaut- if you put a hole in it and the contents start coming out of it the astronaut can't really stay alive.

Getting a bit more into the chemistry of it the membrane prevents proteins outside of a cell from interacting with proteins inside of it, except when there is a membrane protein like in multicellular species. Many cells also pump a wide range of ions in or out of their membrane- this is so that they can let them flow back across the membrane to essentially power motors that make important molecules like ATP.

So the membrane is simply the dividing line between inside and outside, and it takes part in every little cellular process that needs to go across that barrier, or isolates processes that shouldn't cross it.

Answer 3

The cell membrane is important because it keeps the cell together and it is the barrier between the cell and its environment. It regulates what goes in and out of the cell. It allows nutrients to enter the cell and allows wastes to leave the cell.

Answer 4

its important because it transports molecules and materials into the cell and out of the cell.

Answer 5

Cell membranes are important because they control the cell's activity

Answer 6

a cell membrane is important because it supports the entire cell without one none would form and we would die

Answer 7

It keeps the cytoplasm etc. inside and protects the cell.

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The cell membrane is responsible for the process of osmosis due to its semipermeable nature.