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channel or transport or receptor

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Q: What protein recognizes certain molecules bringing them across a membrane?
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A specific protein that recognizes certain molecules bringing them across the membrane?

Receptor Protein.


What is a specific protein that recognizes certain molecules?

balls


What do you call a cell membrane that allows certain molecules to pass through?

A selectively permeable membrane.


What does it mean if a cell membrane is selectively permiable?

The cell membrane only allows certain molecules through.


What is a semipermeable mebrane?

The cell membrane is called as semi-permeable membrane because it allows only certain/selective molecules to pass through it.It mostly allows only solvent molecules to pass.It is sometimes also called as selectively permeable membrane.


Why do you think that the eggs membrane will let water to enter but not corn syrup?

water molecules are smaller than corn syrup. the membrane allows a certain size of molecules.


A specific protein that recognizes certain molecules?

There are antibodies and cell-surface receptors and enzymes; is there a more specific A. in view?


What is the term for a membrane that allows certain but not all molecules to diffuse through it?

semi-permeable.


What is the ability of certain hormones to attach to a cell determined by?

receptor molecules in the cell membrane


What cell organelle has pores that allow certain molecules to leave and enter it?

Cell membrane


What characteristic does it called when the cell membrane allows only certain molecules and ions to enter or exit the cell?

A "semi permeable" membrane.


What does semi permeable membrane do?

I semi-permeable membrane is a membrane when only certain substances can pass through it.it is a membrane that will only allow certain molecules through it . in general oxygen , food and water are allowed to enter ; waste products are allowed to exit and harmful substances are kept out. hope this helps.