Q.1
In plants, energy is obtained from the sun in the form of solar energy and stored in the form of complex organic matter. Where is it used?
  • used for carrying unuseful tissues out of the plant
  • used for seeing the stomata easily with a microscope
  • used for performing various essential functions of life by the plant
  • plants only know
Q.2
Which of the following is the key compound in the intermediary metabolism of carbohydrates, lipid and proteins
  • PEP
  • PGA
  • Acetyl CoA
  • α\alphaα  -ketoglutarate
Q.3
First respiratory substrate :
  • Lipid
  • Protein
  • Carbohydrate
  • Both (a) and (c)
Q.4
Pyruvate which is formed by the glycolytic catabolism of carbohydrates in the cytosol, after it enters into mitochondrial matrix it undergoes :
  • Reductive amination
  • Oxidation decarboxylation
  • Reductive carboxylation
  • Reductive decarboxylation
Q.5
How many oxidation step take place during glycolysis, link reaction and Kreb’s cycle.
  • 1, 1 and 1
  • 1, 1 and 4
  • 1, 1 and 3
  • 1, 1 and 8
Q.6
What is the role of NAD+ in cellular respiration?
  • It is a nucleotide source for ATP synthesis.
  • It functions as an electron carrier.
  • It functions as an enzyme
  • It is the final electron acceptor for anaerobic respiration.
Q.7
When a molecule of pyruvic acid is subjected to fermentation and forms lactic acid, there is
  • Gain of 2 ATP
  • Loss of 3 ATP
  • Loss of 6 ATP
  • Gain of 3 ATP
Q.8
What do stomata takes during the photosynthesis?
  • O
  • Carbon dioxide
  • oxygen
  • All of above
Q.9
Breathing generates energy
  • False
  • True
Q.10
What gas is needed in order to perform respiration at the cellular level?
  • oxygen
  • carbon dioxide
  • hydrogen
  • nitrogen
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