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The plasma membrane of plant and animal ...

The plasma membrane of plant and animal cells

A

may not be seen by any microscope

B

contains two layers of lipid between layers of protein

C

is not selectively permeable

D

can only be visualized with the aid of the electron microscope

Text Solution

Verified by Experts

The correct Answer is:
B
The cell membrane is semipermeable, can be resolved by the electron microscope. is about 75 Å wide and appears on electron micrographs as two (2) dark lines with a light space between them. Evidence indicates that the two bordering dark lines are composed of proteins while the middle (light) layer contains lipids.
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