mmccants1986p0ij48 mmccants1986p0ij48

06-10-2020
Biology

contestada

Which molecules would REQUIRE a channel or transport protein to cross the cell membrane?
A) CO2
B)H2O
C)k+
D)O2

Respuesta :

neima17 neima17

06-10-2020

C) K ( potassium)

Explanation:
Small non-charged molecules like CO2, H2O, O2 can pass through the membrane freely.
But others such as K+ require specific potassium bumps throughout the membrane. Which acts to transport Na+ and K+ cross the membrane.

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