Photosynthetic Active Radiation $(PAR)$ has the following range of wavelengths
- 400 - 700 nm
- 450 - 950 nm
- 340 - 450 nm
- 500 - 600 nm
The Correct Option is A
Solution and Explanation
Top Questions on energy flow through ecosystems
- The total energy fixed by a green plant is called:
- CUET (UG) - 2024
- Biology
- energy flow through ecosystems
- Identify the incorrect statement regarding the flow of energy between various components of the food chain.
- KCET - 2023
- Biology
- energy flow through ecosystems
- In a forest ecosystem, transfer of energy in a food chain:
A. Lion
B. Deer
C. Vulture
D. Plants
E. Fungi & bacteria
Choose the correct answer from the options given below:- CUET (PG) - 2023
- Biology
- energy flow through ecosystems
- Pyramid of energy in an ecosystem is always -
- CUET (PG) - 2023
- Biology
- energy flow through ecosystems
- An ecosystem has
A. Plants are the first trophic level
B. Primary consumers are always carnivore
C. Primary and secondary consumers are herbivore
D. Secondary consumers are carnivore
E. Tertiary Consumers are the fourth trophic level
Choose the most appropriate answer from the options given below:- CUET (PG) - 2023
- Biology
- energy flow through ecosystems
Questions Asked in AIIMS exam
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.
Reason (R) : Liberation of oxygen is due to photolysis of water.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Photosynthesis in higher plants
- Match the following column I with column II.
- AIIMS - 2019
- cloning
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- evolution
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
In the light of the above statements, choose the correct answer from the options given below- AIIMS - 2019
- Gravitation
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In eukaryotes, transcription occurs in nucleus.
Reason (R) : In bacteria, transcription and translation occurs in cytoplasm.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Transcription
Concepts Used:
Energy Flow through Ecosystems
The energy flow in the ecosystem is one of the major factors that support the survival of such a large number of organisms. For almost all lifeforms on earth, solar energy is the primary source of energy. It is entertaining to find that we receive less than 50 % of the sun’s effective radiation on the earth. When we say effective radiation, we mean the radiation, which can be utilized by plants to carry out photosynthesis.
The energy flow takes place throughout the food chain and food web. During the process of energy flow in the ecosystem, plants being the producers absorb sunlight with the help of the chloroplasts and a part of it is converted into chemical energy in the process of photosynthesis. This energy is stored in different organic products in the plants and passed on to the primary consumers in the food chain when the herbivores consume the plants as food. Then followed by the secondary consumers. Finally, when tertiary consumers consume the carnivores, energy will again be degraded. Thus, the energy flow is unidirectional in nature.
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