alleryBesides light and CO2, what factor can slow photosynthesis if too low?
AStrength of root pressure in xylem
BTemperature of the surrounding air
CAtmospheric humidity inside the leaf
DAir pressure inside the soil pores
Answer & Solution
Correct answer: B. Temperature of the surrounding air
1. Photosynthesis is enzyme-driven, so it is temperature-sensitive.
2. At low temperature enzymes work slowly.
3. At very high temperature enzymes denature.
4. So temperature limits photosynthesis.
_Source: Selina Concise Biology Class 10, Ch on Photosynthesis (Mistral OCR'd PDF), section on factors_
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