81. Which of the following is the source of respiration

A Stored food
B RNA
C DNA
D ATP
Answer :   Stored food
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82. In case of C4 plant the acceptor of CO2 is

A Phosphoglyceradehyde
B Ribulose monophosphate
C Phosphoenol pyruvate
D Ribulose diphosphate
Answer :   Phosphoenol pyruvate
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83. Apparatus used to measure Respiratory quotient

A Photometer
B Auxanometer
C Respirometer
D Warburg's apparatus
Answer :   Respirometer
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84. In photosynthesis there is

A Reduction of H2O
B Oxodation of H2O
C Oxidation of CO2
D Oxidation of NO32
Answer :   Oxodation of H2O
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85. Energy required for start of biochemical reaction is

A Potential energy
B Entropy
C Activation enrgy
D Kinetic energy
Answer :   Activation enrgy
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86. In Krebs cycle FAD participates as electron acceptor during the conversion of

A succinyl CoA to Succinic acid
B alfa keto glutarate to Succinyl CoA
C succinic acid to Fumaric acid
D fumaric acid to Malic acid
Answer :   succinic acid to Fumaric acid
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87. Which one of the following is a wasteful process

A Photrespiration
B Respiration
C Photosynthesis
D ETS
Answer :   Photrespiration
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88. In which one of the following do the two name refer to one and the same thing

A Kreb's cycle and Calvin cycle
B Tricarboxylic acid cycle and citric acid cycle
C Citric acid cycle and Calvin cycle
D Tricarboxylic acid cycle and urea cycle
Answer :   Tricarboxylic acid cycle and citric acid cycle
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89. During oxidative phosphorylation following provides energy for the ATP formation

A CoA
B NADPH
C Efflux of proton to PMS
D Pyruvic acid
Answer :   Efflux of proton to PMS
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90. R.Q. is represetned by

A O2/CO2
B CO21/O2
C V2/V2-V1
D O2 taken in
Answer :   CO21/O2
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