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Question
PEPcase and RuBiSCO in C4 plants are present respectively in
PEPcase and RuBiSCO in C4 plants are present respectively in
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Solution
The correct option is C Cytoplasm and thylakoids
The leaves of C4 plants showcases the specialized Kranz anatomy i.e., the vascular bundle is surrounded by bundle sheath cells in a ring form which are in turn bound by one or more concentric layers of mesophyll cells. Amospheric CO2 is first accepted by PEP and converted to OAA via PEPcase in the cytoplasm of the mesophyll cells. OAA is further converted to malate and transported from mesophyll to the bundle sheath cells. Malate is decarboxylated to release pyruvate and CO2; the CO2 is then fixed by RuBiSCO which is located in the unstacked thylakoids of the bundle sheath cells.So the correct option is 'Cytoplasm and thylakoids'
The leaves of C4 plants showcases the specialized Kranz anatomy i.e., the vascular bundle is surrounded by bundle sheath cells in a ring form which are in turn bound by one or more concentric layers of mesophyll cells. Amospheric CO2 is first accepted by PEP and converted to OAA via PEPcase in the cytoplasm of the mesophyll cells. OAA is further converted to malate and transported from mesophyll to the bundle sheath cells. Malate is decarboxylated to release pyruvate and CO2; the CO2 is then fixed by RuBiSCO which is located in the unstacked thylakoids of the bundle sheath cells.
So the correct option is 'Cytoplasm and thylakoids'
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