Excessive nutrients lead to algal blooms and low-oxygen waters that can kill fish and seagrass and reduce essential fish habitats. Excessive algal and plant growth is a symptom of eutrophication which is produced by an increase in the availability of one or more photosynthesis-limiting growth nutrients. The fish will die as a result of the lack of oxygen.
AIIMS-27.05.2018 Shift-II
Ecosystem
260349
In the phosphorus cycle, weathering makes phosphate available first to :
1 decomposers
2 consumers
3 producers
4 all the above
Explanation:
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rockes are weathered. Minute amount of these phosphate dissolue in soil solution and are absorbed by the roots of the plants or (produces).
Punjab MET-2004
Ecosystem
260350
The main role of bacteria in the carbon cycle involves
1 photosynthesis
2 assimilation of nitrogenous compounds
3 chemosynthesis
4 digestion or breakdown of organic compounds
Explanation:
The main role of bacteria in the carbon cycle involves digestion or breakdown of organic compounds. Because bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply of $\mathrm{CO}_2$ available for photosynthesis is replenished.
Punjab MET-2010
Ecosystem
260351
Identify the incorrect statement from the following:
1 The reservoir pool for phosphorous cycle is earth's crust whereas atmosphere is the reservoir pool for carbon cycle.
2 During carbon cycle and phosphorous cycle, there is very little respiratory release of carbon and phosphorous respectively.
3 Atmospheric inputs of phosphorous through rainfall are much smaller than carbon inputs.
4 Gaseous exchange of phosphorous between organism and environment are negligible.
Explanation:
In the carbon cycle the carbon dioxide which is present in the atmosphere is in the form of gas taken by plant cells. The plant cells fix the carbon and store in the form of stable-compounds like glucose which is the converted to form the starch. The carbon is also involved in respiratory cycles. The carbon dioxide which is released as the product of respiration in the combined form.
Excessive nutrients lead to algal blooms and low-oxygen waters that can kill fish and seagrass and reduce essential fish habitats. Excessive algal and plant growth is a symptom of eutrophication which is produced by an increase in the availability of one or more photosynthesis-limiting growth nutrients. The fish will die as a result of the lack of oxygen.
AIIMS-27.05.2018 Shift-II
Ecosystem
260349
In the phosphorus cycle, weathering makes phosphate available first to :
1 decomposers
2 consumers
3 producers
4 all the above
Explanation:
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rockes are weathered. Minute amount of these phosphate dissolue in soil solution and are absorbed by the roots of the plants or (produces).
Punjab MET-2004
Ecosystem
260350
The main role of bacteria in the carbon cycle involves
1 photosynthesis
2 assimilation of nitrogenous compounds
3 chemosynthesis
4 digestion or breakdown of organic compounds
Explanation:
The main role of bacteria in the carbon cycle involves digestion or breakdown of organic compounds. Because bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply of $\mathrm{CO}_2$ available for photosynthesis is replenished.
Punjab MET-2010
Ecosystem
260351
Identify the incorrect statement from the following:
1 The reservoir pool for phosphorous cycle is earth's crust whereas atmosphere is the reservoir pool for carbon cycle.
2 During carbon cycle and phosphorous cycle, there is very little respiratory release of carbon and phosphorous respectively.
3 Atmospheric inputs of phosphorous through rainfall are much smaller than carbon inputs.
4 Gaseous exchange of phosphorous between organism and environment are negligible.
Explanation:
In the carbon cycle the carbon dioxide which is present in the atmosphere is in the form of gas taken by plant cells. The plant cells fix the carbon and store in the form of stable-compounds like glucose which is the converted to form the starch. The carbon is also involved in respiratory cycles. The carbon dioxide which is released as the product of respiration in the combined form.
Excessive nutrients lead to algal blooms and low-oxygen waters that can kill fish and seagrass and reduce essential fish habitats. Excessive algal and plant growth is a symptom of eutrophication which is produced by an increase in the availability of one or more photosynthesis-limiting growth nutrients. The fish will die as a result of the lack of oxygen.
AIIMS-27.05.2018 Shift-II
Ecosystem
260349
In the phosphorus cycle, weathering makes phosphate available first to :
1 decomposers
2 consumers
3 producers
4 all the above
Explanation:
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rockes are weathered. Minute amount of these phosphate dissolue in soil solution and are absorbed by the roots of the plants or (produces).
Punjab MET-2004
Ecosystem
260350
The main role of bacteria in the carbon cycle involves
1 photosynthesis
2 assimilation of nitrogenous compounds
3 chemosynthesis
4 digestion or breakdown of organic compounds
Explanation:
The main role of bacteria in the carbon cycle involves digestion or breakdown of organic compounds. Because bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply of $\mathrm{CO}_2$ available for photosynthesis is replenished.
Punjab MET-2010
Ecosystem
260351
Identify the incorrect statement from the following:
1 The reservoir pool for phosphorous cycle is earth's crust whereas atmosphere is the reservoir pool for carbon cycle.
2 During carbon cycle and phosphorous cycle, there is very little respiratory release of carbon and phosphorous respectively.
3 Atmospheric inputs of phosphorous through rainfall are much smaller than carbon inputs.
4 Gaseous exchange of phosphorous between organism and environment are negligible.
Explanation:
In the carbon cycle the carbon dioxide which is present in the atmosphere is in the form of gas taken by plant cells. The plant cells fix the carbon and store in the form of stable-compounds like glucose which is the converted to form the starch. The carbon is also involved in respiratory cycles. The carbon dioxide which is released as the product of respiration in the combined form.
Excessive nutrients lead to algal blooms and low-oxygen waters that can kill fish and seagrass and reduce essential fish habitats. Excessive algal and plant growth is a symptom of eutrophication which is produced by an increase in the availability of one or more photosynthesis-limiting growth nutrients. The fish will die as a result of the lack of oxygen.
AIIMS-27.05.2018 Shift-II
Ecosystem
260349
In the phosphorus cycle, weathering makes phosphate available first to :
1 decomposers
2 consumers
3 producers
4 all the above
Explanation:
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rockes are weathered. Minute amount of these phosphate dissolue in soil solution and are absorbed by the roots of the plants or (produces).
Punjab MET-2004
Ecosystem
260350
The main role of bacteria in the carbon cycle involves
1 photosynthesis
2 assimilation of nitrogenous compounds
3 chemosynthesis
4 digestion or breakdown of organic compounds
Explanation:
The main role of bacteria in the carbon cycle involves digestion or breakdown of organic compounds. Because bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply of $\mathrm{CO}_2$ available for photosynthesis is replenished.
Punjab MET-2010
Ecosystem
260351
Identify the incorrect statement from the following:
1 The reservoir pool for phosphorous cycle is earth's crust whereas atmosphere is the reservoir pool for carbon cycle.
2 During carbon cycle and phosphorous cycle, there is very little respiratory release of carbon and phosphorous respectively.
3 Atmospheric inputs of phosphorous through rainfall are much smaller than carbon inputs.
4 Gaseous exchange of phosphorous between organism and environment are negligible.
Explanation:
In the carbon cycle the carbon dioxide which is present in the atmosphere is in the form of gas taken by plant cells. The plant cells fix the carbon and store in the form of stable-compounds like glucose which is the converted to form the starch. The carbon is also involved in respiratory cycles. The carbon dioxide which is released as the product of respiration in the combined form.
