State whether the following statement is true or false :Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level in a food chain.

Academic Biology NCERT Class 10

False.

As only one percent of light energy is trapped by plants, and of this, only 10 percent is transferred at each trophic level in a food chain.

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Updated on: 18-Jan-2023

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What percentage of energy available at the producer level is transferred at successive trophic levels in a food chain?
(a) Name and state the law given by Lindeman which tells us how much energy entering a particular trophic level of organisms is available for trasnsfer to the next higher trophic level.(b) How much energy will be available to hawks in the food chain comprising hawk, snake, paddy, and mice, if 10,000 J of energy is available to paddy from the sun?
State whether the following statement is true or false : Earth moves round the sun with uniform velocity.
State whether the following statement is true or false :Milk is a pure substance.
Which of the following limits the number of trophic levels in a food chain?(a) insufficient food supply from producer level(b) decrease in energy at higher trophic levels(c) increase in the number of organisms at higher trophic levels(d) accumulation of harmful chemicals at higher trophic levels
What is meant by trophic level in a food chain? Construct a terrestrial food chain with four trophic levels. The energy flow in a food chain is always unidirectional. Why?
Construct A Terrestrial Food Chain Comprising Four Trophic Levels. (b) What Will Happen If We Kill All the Organisms in One Trophic Level? (c) Calculate The Amount of Energy Available to The Organisms at The Fourth Trophic Level If the Energy Available to The Organisms at The Second Trophic Level Is 2000 J.
The ten per cent law is associated with(a) transfer of energy from various trophic levels to decomposers in a food chain(b) transfer of ATP energy into muscular energy(c) transfer of chemical energy from one organism to another(d) transfer of sun's energy to the organisms called producers.
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?(a) 99 per cent (b) 10 per cent (c) 1 per cent (d) 20 per cent
State whether the following statement is true or false: The potential energy of a body of mass $1\ kg$ kept at a height of $1\ m$ is $1\ J$.
In an ecosystem, the ten percent energy available for transfer from one trophic level to the next is in the form of :(a) heat energy (b) chemical energy(c) mechanical energy (d) light energy
In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?Grass → Grasshopper → Frog → Snake → Hawk(a) 500 kJ (b) 50 kJ (c) 5000 kJ (d) 5 kJ
State whether the following statement is true or false:The planets twinkle at night due to atmospheric refraction of light.
State whether the following statement is true or false:An electric motor converts mechanical energy into electrical energy.
State whether the following statement is true or false :Radioactive isotope of iodine is used for making the medicine called tincture iodine.

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