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In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]
- a)Gross primary productivity and Net primary productivity are one and same.
- b)There is no relationship between Gross primary productivity and Net primary productivity
- c)Gross primary productivity is always less than Net primary productivity.
- d)Gross primary productivity is always more than Net primary productivity.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In relation to Gross primary productivity and Net primary productivity...
Understanding Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)
Gross Primary Productivity (GPP) refers to the total amount of organic matter, or biomass, produced by photosynthetic organisms in an ecosystem within a specific time frame. This includes all the energy captured by plants through photosynthesis.
Net Primary Productivity (NPP), on the other hand, is the energy or biomass available to the next trophic levels, which is calculated by subtracting the energy used by plants for respiration from GPP.
Key Differences Between GPP and NPP:
- GPP represents total energy capture.
- NPP represents the energy available for consumption by herbivores and decomposers.
Why GPP is Always Greater than NPP:
- Respiration Losses: A portion of the energy captured by plants is utilized for their own metabolic processes, such as respiration. This energy loss means that NPP will always be less than GPP.
- Formula Representation: Mathematically, NPP = GPP - Respiration. Since respiration is always a positive value, NPP is always less than GPP.
- Ecological Implications: The difference between GPP and NPP highlights how much energy is available for the food web. A higher GPP indicates a productive ecosystem, but the NPP is crucial for supporting herbivores and, subsequently, carnivores.
Conclusion:
In summary, option 'D' is correct because Gross Primary Productivity is always more than Net Primary Productivity due to the energy lost during respiration processes in plants. Understanding this relationship is essential for grasping ecosystem productivity dynamics in ecological studies.
Gross Primary Productivity (GPP) refers to the total amount of organic matter, or biomass, produced by photosynthetic organisms in an ecosystem within a specific time frame. This includes all the energy captured by plants through photosynthesis.
Net Primary Productivity (NPP), on the other hand, is the energy or biomass available to the next trophic levels, which is calculated by subtracting the energy used by plants for respiration from GPP.
Key Differences Between GPP and NPP:
- GPP represents total energy capture.
- NPP represents the energy available for consumption by herbivores and decomposers.
Why GPP is Always Greater than NPP:
- Respiration Losses: A portion of the energy captured by plants is utilized for their own metabolic processes, such as respiration. This energy loss means that NPP will always be less than GPP.
- Formula Representation: Mathematically, NPP = GPP - Respiration. Since respiration is always a positive value, NPP is always less than GPP.
- Ecological Implications: The difference between GPP and NPP highlights how much energy is available for the food web. A higher GPP indicates a productive ecosystem, but the NPP is crucial for supporting herbivores and, subsequently, carnivores.
Conclusion:
In summary, option 'D' is correct because Gross Primary Productivity is always more than Net Primary Productivity due to the energy lost during respiration processes in plants. Understanding this relationship is essential for grasping ecosystem productivity dynamics in ecological studies.
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In relation to Gross primary productivity and Net primary productivity...
The gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. Some of this organic matter is lost because of the respiration of plants. The remaining primary productivity is the net primary productivity.
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In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer?.
In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In relation to Gross primary productivity and Net primary productivity of an ecosystem. Which one of the following statements is correct? [2020]a)Gross primary productivity and Net primary productivity are one and same.b)There is no relationship between Gross primary productivity and Net primary productivityc)Gross primary productivity is always less than Net primary productivity.d)Gross primary productivity is always more than Net primary productivity.Correct answer is option 'D'. Can you explain this answer?.
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