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The cell membrane is the thing that surrounds the cell. The cell membrane contains proteins that allow active transport of molecules in and out of the cell.

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10y ago

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How does permeable work?

it's like a paper with very small holes So water molecules can pass though it but other molecules like sugar can't because they are too big. That is also how osmosis works. Because the cellwall is semipermeable!


How does semi permeable work?

it's like a paper with very small holes So water molecules can pass though it but other molecules like sugar can't because they are too big. That is also how osmosis works. Because the cellwall is semipermeable!


What type of energy surrounds black holes?

Hawking radiation and a whole lot of everything else.


How are the ozone layer holes caused?

Ozone holes are the thinning of ozone molecules. This is caused by man made or natural processes.


What has a lot of holes yet it holds many molecules of water?

A sponge


Do water molecules have holes?

It could be said that water molecules do have "holes", although a better term would be empty space. This is why compounds like sugar and salt can dissolve in water, as well as some other chemical properties that make this possible.


How does Jason look without his mask?

hi probably has holes in his that allows him to see


If a membrane was not permeable to sugars why would it probably also not be permeable to starch molecules?

If a membrane is permeable to a substance, it means that there are gaps/holes/pores in the membrane large enough for that substance to pass through. Starch molecules are bigger that sugar molecules. So if the membrane is not permeable to sugars, the gaps/holes/pores will not be big enough for starch molecules to pass through either.


What does selectively permeable mean?

Selective permeability refers to the property of a membrane that allows certain molecules or ions to pass through while restricting the passage of others. This selectivity is based on factors like size, charge, and solubility. Essentially, the membrane is capable of regulating the passage of substances based on specific criteria.


How are electron holes in the molecules filled?

first, the electron holes are filled with electron guillotine called flumenya, then the air absorbs the flumenya creating a hard substance called tiddita


What is Nuclear Pore in animal cell?

Nuclear pores are large protein complexes that span the nuclear envelope, which surrounds the nucleus in animal cells. These pores regulate the passage of molecules such as proteins and RNA between the nucleus and the cytoplasm, allowing for communication and transportation essential for cell function.


Small holes in the nuclear envelope is called?

The small holes in the nuclear envelope are called nuclear pores. These pores facilitate the movement of molecules such as proteins and RNA between the nucleus and the cytoplasm.