How does C4 plants prevent water loss?
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Answer:
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C4 plants have evolved a mechanism to deliver CO2 to Rubisco
Plants also lose water vapor through their stomata, which means that they can die from dehydration in dry conditions as they keep their stomata open for photosynthesis. In response, plants close their stomata to prevent dehydration
Answer:
C4 and CAM plants are plants that use certain special compounds to gather carbon dioxide (CO 2 ) during photosynthesis. Using these compounds allows these plants to extract more CO 2 from a given amount of air, helping them prevent water loss in dry climates.
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Some plants that live in hot, dry climates maintain low oxygen levels in their leaves by keeping the stomata closed to prevent water loss. To get adequate CO2 for photosynthesis, C4 plants have adapted to photorespiration by modifying the Calvin-Benson cycle.
Improved leaf and plant water use efficiency in C4 species is due to both higher photosynthetic rates per unit leaf area and lower stomatal conductance. By contrast, leaf and plant water use efficiency is increased in C4 plants under elevated CO2 because of reduced stomatal conductance.