Question

In photosynthesis C3, plants differ from C4 plants in:

A.) the way they capture light.

B.) the way they capture carbon dioxide.

C.) the kind of chlorophylls they have.

D.) None of the choices is correct.

Answer 1

• In photosynthesis C3, plants differ from C4 plants in:

Answer- B.) the way they capture carbon dioxide.

C4 plants can concentrate carbon dioxide better than c3 plants.

C3 plants capture light and produce ATP and NADPH in Grana. ATP and NADPH are used to produce Triose phosphate in the stroma.

C4 plants capture light and produce ATP and NADPH in grana in the same way as C3 plants. C4 plants adopt a different or alternative mode of fixing carbon. C4 plants concentrate carbon dioxide at the site of carboxylation. This helps in keeping Carbon dioxide concentration high, now RuBisCo will bind to carbon dioxide instead of oxygen. C4 plants have bundle sheath cells and mesophyll cells. Carbon dioxide concentration is high enough in bundle sheath cell and this keeps RubisCo from binding with oxygen.

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