Question

Which of the following does not apply to
chloroplasts?
A) They contain chlorophyll and the enzymes required for
photosynthesis.
B) They contain an internal membrane system consisting
of thylakoids.
C) They synthesize ATP (adenosine triphosphate) from
ADP (adenosine diphosphate) and Pi (inorganic
phosphate).
D) They are bounded by two membranes, the inner of
which is folded into the cristae.
E) They contain a green pigment called chlorophyll.

Answer 1

Answer: option no. C is right answer

Explanation:

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Answer 2

Answer:

Among the following options, D) They are bounded by two membranes, the inner of which is folded into the cristae is not applied to chloroplasts.                                            

Explanation:

• Like Mitochondria, Chloroplast is a double membrane-bound cell organelle i.e. enclosed by two membranes.

• In addition to inner and outer membranes, chloroplasts possess a closed compartment of stacked membrane called- grana.

• Each granum contains an internal membrane system consisting of thylakoids( disc-shaped structures).

• They contain a green-coloured photosynthetic pigment called chlorophyll and the enzymes required for photosynthesis.

• They possess their DNA and synthesize ATP (adenosine triphosphate) from ADP (adenosine diphosphate) and Pi (inorganic phosphate).

• The inner membrane of mitochondria is folded into a series of internal ridges called- cristae presence of which increases the surface area inside mitochondria, not in chloroplasts.  

Therefore option D) is the correct and most appropriate answer.

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