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With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
- a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.
- b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.
- c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.
- d)Light saturation for CO2 fixation occurs at 10% of full sunlight
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
With reference to factors affecting the rate of photosynthesis, which...
Statement b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.
This statement is not correct because it is the opposite of what actually occurs.
Explanation:
1. Factors affecting the rate of photosynthesis:
Photosynthesis is a complex process that involves the conversion of light energy into chemical energy in plants. Several factors can affect the rate of photosynthesis, including:
- Light intensity: Higher light intensity generally leads to increased photosynthesis rates until a certain point of saturation is reached.
- Carbon dioxide (CO2) concentration: Increased atmospheric CO2 levels can enhance the rate of CO2 fixation and, therefore, photosynthesis.
- Temperature: Temperature affects the enzymatic reactions involved in photosynthesis. However, different plant types have different temperature optima for photosynthesis.
- Water availability: Sufficient water is necessary for photosynthesis to occur, as it is involved in the transport of nutrients and maintains turgor pressure.
- Chlorophyll concentration: Chlorophyll is the pigment responsible for capturing light energy. Higher chlorophyll concentration can result in increased photosynthesis rates.
2. Correct statements:
a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate:
- This statement is correct. Higher CO2 concentrations can increase the rate of CO2 fixation and, consequently, enhance photosynthesis. This phenomenon is known as the CO2 fertilization effect.
c) Tomato is a greenhouse crop that can be grown in a CO2-enriched atmosphere for higher yield:
- This statement is correct. Tomato plants can benefit from higher CO2 concentrations in a greenhouse environment, leading to increased photosynthesis and higher yields.
d) Light saturation for CO2 fixation occurs at 10% of full sunlight:
- This statement is correct. Light saturation occurs when the light intensity reaches a point where the photosynthetic rate no longer increases, even with higher light levels. This saturation point is typically around 10% of full sunlight.
3. Incorrect statement:
b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum:
- This statement is incorrect. C3 plants, such as wheat and rice, have an optimal temperature range for photosynthesis around 25-30°C. In contrast, C4 plants, such as maize and sugarcane, have a higher temperature optimum, typically around 30-40°C. C4 plants have evolved additional biochemical pathways that allow them to efficiently fix CO2 even at higher temperatures.
Conclusion:
In conclusion, the correct answer is option 'b' because C3 plants respond to higher temperature with enhanced photosynthesis, while C4 plants have a higher temperature optimum.
This statement is not correct because it is the opposite of what actually occurs.
Explanation:
1. Factors affecting the rate of photosynthesis:
Photosynthesis is a complex process that involves the conversion of light energy into chemical energy in plants. Several factors can affect the rate of photosynthesis, including:
- Light intensity: Higher light intensity generally leads to increased photosynthesis rates until a certain point of saturation is reached.
- Carbon dioxide (CO2) concentration: Increased atmospheric CO2 levels can enhance the rate of CO2 fixation and, therefore, photosynthesis.
- Temperature: Temperature affects the enzymatic reactions involved in photosynthesis. However, different plant types have different temperature optima for photosynthesis.
- Water availability: Sufficient water is necessary for photosynthesis to occur, as it is involved in the transport of nutrients and maintains turgor pressure.
- Chlorophyll concentration: Chlorophyll is the pigment responsible for capturing light energy. Higher chlorophyll concentration can result in increased photosynthesis rates.
2. Correct statements:
a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate:
- This statement is correct. Higher CO2 concentrations can increase the rate of CO2 fixation and, consequently, enhance photosynthesis. This phenomenon is known as the CO2 fertilization effect.
c) Tomato is a greenhouse crop that can be grown in a CO2-enriched atmosphere for higher yield:
- This statement is correct. Tomato plants can benefit from higher CO2 concentrations in a greenhouse environment, leading to increased photosynthesis and higher yields.
d) Light saturation for CO2 fixation occurs at 10% of full sunlight:
- This statement is correct. Light saturation occurs when the light intensity reaches a point where the photosynthetic rate no longer increases, even with higher light levels. This saturation point is typically around 10% of full sunlight.
3. Incorrect statement:
b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum:
- This statement is incorrect. C3 plants, such as wheat and rice, have an optimal temperature range for photosynthesis around 25-30°C. In contrast, C4 plants, such as maize and sugarcane, have a higher temperature optimum, typically around 30-40°C. C4 plants have evolved additional biochemical pathways that allow them to efficiently fix CO2 even at higher temperatures.
Conclusion:
In conclusion, the correct answer is option 'b' because C3 plants respond to higher temperature with enhanced photosynthesis, while C4 plants have a higher temperature optimum.
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With reference to factors affecting the rate of photosynthesis, which...
C4 plants respond to higher temperature with enhanced photosynthesis while C3 plants have lower temperature optimum.
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With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer?
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With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer?.
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?a)Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.b)C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.c)Tomato is a greenhouse crop which can be grown in CO2 -enriched atmosphere for higher yield.d)Light saturation for CO2 fixation occurs at 10% of full sunlightCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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