Biology - Matter and Energy
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This is MCQs of Biology
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Question 1 of 38
1. Question
All the energy for living organisms comes as radiation in the form of __________ from the sun and is captured by ___________.
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Question 2 of 38
2. Question
Livina cells control their activities through:
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Question 3 of 38
3. Question
Energy is utilized by cells for:
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Question 4 of 38
4. Question
Which of the cellular activities require energy?
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Question 5 of 38
5. Question
What type of energy is needed to make up the loss of energy in a cell?
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Question 6 of 38
6. Question
Which is correct about energy changes in living cells?
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Question 7 of 38
7. Question
A steady state system means:
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Question 8 of 38
8. Question
There is an exchange of materials and energy between living organisms and their surrounding. Such a system is called:
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Question 9 of 38
9. Question
A closed system is which:
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Question 10 of 38
10. Question
The process in which excess energy lost by light waves is called:
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Question 11 of 38
11. Question
Free energy liberated during oxidation pr mole of palmitic acid is G [cal/mol]:
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Question 12 of 38
12. Question
in the organisms, which show bio luminescence, the chemical energy of cell is converted into:
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Question 13 of 38
13. Question
The energy transformation in the nervous system is:
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Question 14 of 38
14. Question
The total solar energy is converted to biomass on Earth amounts only:
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Question 15 of 38
15. Question
A coconut high in a palm tree has _________ owing to its location:
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Question 16 of 38
16. Question
The amount of usable energy that is available for doing work in a system is :
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Question 17 of 38
17. Question
The _________ energy of a system is that part of the total energy available to do cellular work:
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Question 18 of 38
18. Question
Maximum efficiency of a system in which rate of input of energy equal to output is called:
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Question 19 of 38
19. Question
The total heat content of a system is:
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Question 20 of 38
20. Question
When spontaneous process occurs then free energy of a system:
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Question 21 of 38
21. Question
Energy flow and energy transformation in living systems strictly conform to the:
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Question 22 of 38
22. Question
According to the first law of thermodynamics, the total amount of energy in the universe:
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Question 23 of 38
23. Question
According to the first law of thermodynamics:
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Question 24 of 38
24. Question
What is predicated by the second law of thermodynamics?
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Question 25 of 38
25. Question
According to the second law of thermodynamics:
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Question 26 of 38
26. Question
Which of the following is a measure of the degree of randomness or disorder of the system?
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Question 27 of 38
27. Question
Energy transformations are not 100% efficient owing to:
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Question 28 of 38
28. Question
The tem’ entropy ‘ was first used by:
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Question 29 of 38
29. Question
The laws of thermodynamics state that whenever energy changes occur, __________ always increases:
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Question 30 of 38
30. Question
In thermodynamics, ________ is a measure of the amount of disorder in the system:
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Question 31 of 38
31. Question
Which statement about ergonomic reactions is true?
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Question 32 of 38
32. Question
A reaction that requires a net input of free energy is described as:
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Question 33 of 38
33. Question
If we liken chemical equilibrium to the bottom of an energy hill then an ________ reaction is an uphill run:
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Question 34 of 38
34. Question
A reaction that releases energy is described as:
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Question 35 of 38
35. Question
A spontaneous reaction is one is which the change in energy (G) has a ______ value:
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Question 36 of 38
36. Question
Organisms which obtain energy by the oxidation of reduced inorganic compounds are called:
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Question 37 of 38
37. Question
To drive a reaction that requires an input of energy:
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Question 38 of 38
38. Question
The kinetic energy required to initiate a reaction is called:
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