Biology for IGCSE & O level - Plant Nutrition (Section 7 - No. 40)

Which of the following would be true for a plant that is being photosynthesized with a high concentration of carbon dioxide?
Rate of photosynthesis will be low
Rate of photosynthesis will be high
Rate of photosynthesis will stay the same
Rate of photosynthesis will become zero

Explanation

Photosynthesis increases with CO2 concentration up to a certain level. After reaching this point, there's no significant increase in the rate.

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