How many membranes does the chlorplast have?
a. 1
b. 2
c. 3
d. 4

B

Explanation:

Chloroplasts have two membranes: external and internal membrane. These membranes contain 60% of lipids and 40% of proteins, just like the typical cell membranes. The inner or internal membrane is virtually non-permeable to any substances but it has transport proteins, on the other hand, the outer or external membrane is permeable to most of the small molecules

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