Question:
The point at which CO2 uptake exactly balances CO2 release is called
The point at which CO2 uptake exactly balances CO2 release is called
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Light compensation point:
- Photosynthesis = Respiration.
- Net CO2 exchange is zero.
- Varies with plant species and environmental conditions.
- Photosynthesis = Respiration.
- Net CO2 exchange is zero.
- Varies with plant species and environmental conditions.
Updated On: Aug 27, 2026
- Quantum yield
- Solar tracking
- Light compensation point
- Threshold point
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of photosynthesis and respiration.
Step 2: Detailed Explanation:
The light compensation point is the light intensity at which the rate of photosynthesis exactly equals the rate of respiration.
At this point, there is no net CO2 exchange (CO2 uptake = CO2 release).
Quantum yield (A): The efficiency of light use in photosynthesis.
Solar tracking (B): Plant movement to follow the sun.
Threshold point (D): Not a standard term.
Thus, the correct answer is light compensation point.
Step 3: Final Answer:
Thus, the point where CO2 uptake balances CO2 release is the light compensation point, which corresponds to option (C).
[0.5cm]
This question tests knowledge of photosynthesis and respiration.
Step 2: Detailed Explanation:
The light compensation point is the light intensity at which the rate of photosynthesis exactly equals the rate of respiration.
At this point, there is no net CO2 exchange (CO2 uptake = CO2 release).
Quantum yield (A): The efficiency of light use in photosynthesis.
Solar tracking (B): Plant movement to follow the sun.
Threshold point (D): Not a standard term.
Thus, the correct answer is light compensation point.
Step 3: Final Answer:
Thus, the point where CO2 uptake balances CO2 release is the light compensation point, which corresponds to option (C).
[0.5cm]
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