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Most efficient photosynthesis and presence of bundle sheath chloroplast are characteristics of
Most efficient photosynthesis and presence of bundle sheath chloroplast are characteristics of
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Solution
The correct option is D C4 plants
The C4 plants are characterised by Krantz anatomy. These plants are characterised by dimorphic chloroplasts. These plants have thick walled bundle sheath cells lining the vascular supply. The bundle sheath cells have large agranal chloroplasts, which fix carbon dioxide into sugars with the help of RuBisCO enzyme. The thin walled mesophyll cells have grana in the chloroplast and carry on initial carbon dioxide fixation with the help of PEP carboxylase enzyme. Thus the bundle sheath cells get high concentration of carbon dioxide and are not exposed to oxygen released from grana during light reaction. This adaptation reduces photorespiratory losses in C4 plants. Thus improving overall efficiency of photosynthesis in these plants.
The C4 plants are characterised by Krantz anatomy. These plants are characterised by dimorphic chloroplasts. These plants have thick walled bundle sheath cells lining the vascular supply. The bundle sheath cells have large agranal chloroplasts, which fix carbon dioxide into sugars with the help of RuBisCO enzyme. The thin walled mesophyll cells have grana in the chloroplast and carry on initial carbon dioxide fixation with the help of PEP carboxylase enzyme. Thus the bundle sheath cells get high concentration of carbon dioxide and are not exposed to oxygen released from grana during light reaction. This adaptation reduces photorespiratory losses in C4 plants. Thus improving overall efficiency of photosynthesis in these plants.
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