The plasma membrane is described as being:
ASelectively penetrable
BSelectively permeable
CSelectively persistent
DSelectively perishable
Answer & Solution
Correct answer: B. Selectively permeable
1. It lets some substances through and stops others.
2. This controls what enters and leaves.
3. It is selectively permeable.
_Source: NCERT Class 9 Science, Ch 5 'The Fundamental Unit of Life'_
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