41
Question
Agranal chloroplasts are characteristic of
Agranal chloroplasts are characteristic of
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Solution
The correct option is D Bundle sheath of sugarcane leaves
- Chloroplasts from the leaf mesophyll cells of C4 plants exhibit grana similar to higher plant chloroplasts.
- Originally it was thought that the chloroplasts of C4 bundle sheath chloroplasts were agranal.
- This assumption was supported by the observation of chloroplast ultrastructure of C4 plants such as corn and sugarcane. But a further evaluation of many C4 plants showed that bundle sheath chloroplasts often possess grana.
- Maize is a C4 plant and mesophyll of maize contains granal chlorophyll. Thus, option C is wrong.
- Sugarcane is a C4 plant and bundle sheath of sugar cane leaves contains agranal chlorophyll.
- Pea and mango are C3 plants which contain granal chloroplasts.
Thus, option D is correct.
- Chloroplasts from the leaf mesophyll cells of C4 plants exhibit grana similar to higher plant chloroplasts.
- Originally it was thought that the chloroplasts of C4 bundle sheath chloroplasts were agranal.
- This assumption was supported by the observation of chloroplast ultrastructure of C4 plants such as corn and sugarcane. But a further evaluation of many C4 plants showed that bundle sheath chloroplasts often possess grana.
- Maize is a C4 plant and mesophyll of maize contains granal chlorophyll. Thus, option C is wrong.
- Sugarcane is a C4 plant and bundle sheath of sugar cane leaves contains agranal chlorophyll.
- Pea and mango are C3 plants which contain granal chloroplasts.
Thus, option D is correct.
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