1
Question
Assertion :The loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Reason: Energy does not remain trapped permanently in any organism, it is either passed on to higher trophic level or becomes available to detritivores and decomposers after the organism dies.
Assertion :The loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Reason: Energy does not remain trapped permanently in any organism, it is either passed on to higher trophic level or becomes available to detritivores and decomposers after the organism dies.
Open in App
Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
According to the second law of thermodynamics, every activity involving energy transformation is accompanied by dissipation of energy. In other words, the loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Every time energy is transferred from one place to another or transformed from one kind to another, some of it is converted into heat. An organism transfers chemical energy from glucose or fatty acids to ATP(cellular respiration) and then to the chemical bonds of new molecules(during molecular synthesis), and transforms chemical energy into active transport of molecules, muscle contractions, and a variety of other activities, which are essential to life. Because every living organism continuously converts chemical energy into heat, there is always a loss of chemical energy with each step in a food chain.Energy does not remain trapped permanently in any organism. It is either passed on to the higher trophic level or becomes available to detrivores and decomposers after the organism dies. Death of the organism is the beginning of the detritus food chain/web.So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.
According to the second law of thermodynamics, every activity involving energy transformation is accompanied by dissipation of energy. In other words, the loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Every time energy is transferred from one place to another or transformed from one kind to another, some of it is converted into heat. An organism transfers chemical energy from glucose or fatty acids to ATP(cellular respiration) and then to the chemical bonds of new molecules(during molecular synthesis), and transforms chemical energy into active transport of molecules, muscle contractions, and a variety of other activities, which are essential to life. Because every living organism continuously converts chemical energy into heat, there is always a loss of chemical energy with each step in a food chain.
Energy does not remain trapped permanently in any organism. It is either passed on to the higher trophic level or becomes available to detrivores and decomposers after the organism dies. Death of the organism is the beginning of the detritus food chain/web.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
