Question

Consider the following five statements (A to E) with respect to the chloroplast shown below. Select the correct option stating which ones are True (T) and which ones are False (F).



A. It is selectively permeable and lack porins.
B. Stacked thylakoids one over other which is the site of production of assimilatory power.
C. and D. Present between two grana and contain enzymes of dark reaction.
E. It contains enzymes for the synthesis of sugar and proteins.

• A. A-F B-T C-T D-T E-T
• B. A-F B-T C-F D-F E-T
• C. A-T B-T C-F D-F E-T
• D. A-T B-F C-T D-T E-T

Answer 1

The correct option is C A-T B-T C-F D-F E-T

A → It is the inner membrane of the chloroplast. It is selectively permeable and lacks porins.

B → It is the granum in which thylakoids are arranged in stacks like piles of coins. ATP and NADPH are produced here.

C and D → These are stroma lamellae, present between two grana, and contain enzymes for light reactions.

E → It is the stroma. The space limited by the inner membrane of the chloroplast is called the stroma. It contains enzymes for synthesis of carbohydrates and proteins.