The dominant second trophic level, in a lake ecosystem, is
- phytoplankton
- zooplankton
- benthos
- plankton.
The Correct Option is B
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 NEET exam
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
- Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below- NEET (UG) - 2024
- Cell structure and organelles
- Match List I with List II:Choose the correct answer from the options given below:
List I
List II
A Mesozoic Era I Lower invertebrates B Proterozoic Era II Fish & Amphibia C Cenozoic Era III Birds & Reptiles D Paleozoic Era IV Mammals - NEET (UG) - 2024
- Origin Of Life
- A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates :
- NEET (UG) - 2024
- Capacitors and Capacitance
- The terminal voltage of the battery, whose emf is\(10V\) and internal resistance \(1\), when connected through an external resistance of \(42\) as shown in the figure is:
- NEET (UG) - 2024
- Resistance and Resistivity
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.