What prevents ions from crossing the plasma membrane via
simple diffusion?
A. Ions are too large.
B. Ions carry a charge.
C. Ions are hydrophobic.
D. Ions do not produce a concentration difference.
E. Ions cannot interact with membrane-bound
proteins.

Question

02-09-2014
Biology

Answered

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What prevents ions from crossing the plasma membrane via
simple diffusion?
A. Ions are too large.
B. Ions carry a charge.
C. Ions are hydrophobic.
D. Ions do not produce a concentration difference.
E. Ions cannot interact with membrane-bound
proteins.

Sagot :

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xvolamdox xvolamdox · Answer 1 · 2014-09-02T23:26:08-04:00

Simple diffusion is the concept of a substance moving from an area of high concentration to a lower concentration without energy input. Because the plasma membrane is made of lipids which are non-polar, this membrane readily allows non-polar substances to diffuse through easily. If a substance has a charge like that of an ion, it will be difficult for the ion to cross the plasma membrane through simple diffusion. The answer should be B.

What prevents ions from crossing the plasma membrane via simple diffusion? A. Ions are too large. B. Ions carry a charge. C. Ions are hydrophobic. D. Ions do not produce a concentration difference. E. Ions cannot interact with membrane-bound proteins.

Sagot :

Other Questions

What prevents ions from crossing the plasma membrane via
simple diffusion?
A. Ions are too large.
B. Ions carry a charge.
C. Ions are hydrophobic.
D. Ions do not produce a concentration difference.
E. Ions cannot interact with membrane-bound
proteins.