Question

The plasma membrane is impermeable to all molecules except *

1 point

a) Glucose

b) ATP

c)Urea

d)K+

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Answer 1

Explanation:

the plasma membrane is impermeable to all molecules except lipids and fats because as we know that lipids and fats arr large, complex and insoluble molecules.

Answer 2

The plasma membrane is not impermeable to urea

• The plasma membrane is not impermeable to urea since it is a non-polar and uncharged molecule that can mix well well with phospholipids as well.
• The plasma membrane is selectively permeable and doesn't allow the passage of charged and polar molecules via diffusion.

Thus, The plasma membrane is impermeable to all molecules except (Option c) Urea