PHOTOSYNTHESIS
THE CALVIN CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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C3
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C4
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B4
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A2
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Detailed explanation-1: -C4 plants are adapted to dry tropical regions. Sugarcane, Maize, Sorghum, etc., are the examples of C4 plants. In these plants, the Calvin cycle occurs in the bundle-sheath cells. C4 plants have a special type of anatomy called Kranz anatomy.
Detailed explanation-2: -C4 plants are generally found in hot, dry environments where conditions favor the wasteful photorespiration reactions of RUBISCO, as well as loss of water. In these plants, carbon dioxide is captured in special mesophyll cells first by phosphoenolpyruvate (PEP) to make oxaloacetate.
Detailed explanation-3: -C4 photosynthesis is an adaptation for plants living in hot, arid climates. Some plants that live in hot, dry climates maintain low oxygen levels in their leaves by keeping the stomata closed to prevent water loss.
Detailed explanation-4: -C4− plants are adapted to tropical dry climate.
Detailed explanation-5: -C4 species can effectively preserve high WUE under drought conditions, thus have a higher photosynthetic advantage than C3 plants (Taylor et al., 2011; Way et al., 2014; Hatfield and Dold, 2019).