NEET Biology - New - Respiration in Plants

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Question - 1

In which one of the following processes, carbon dioxide is not released?

  • A Aerobic respiration in animals
  • B Alcoholic fermentation 
  • C Lactate fermentation 
  • D Aerobic respiration in plants

Question - 2

What is the role of NAD+ in cellular respiration?

  • A It is a nucleotide source for ATP synthesis
  • B It functions as an electron carrier
  • C It functions as an enzyme
  • D It is the final electron acceptor for anaerobic respiration

Question - 3

Which of these statements is incorrect ?

  • A Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms
  • B Glycolysis occurs in cytosol
  • C Enzymes of TCA cycle are present in mitochondrial matrix
  • D Oxidative phosphorylation takes place in outer mitochondrial membrane

Question - 4

Which statement is wrong for Kreb's cycle?

  • A There are three point in the cycle where NAD+ is reduced to NADH + H+
  • B There is one point in the cycle where FAD+ is reduced to FADH2
  • C During conversion of succinyl CoA to succine acid, a molecule of GTP is synthesised
  • D The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid

Question - 5

Oxidative phosphorylation is

  • A Formation of ATP energy released from electrons removed during substrate oxidation
  • B Formation of ATP by transfer of phosphate group from a substrate to ADP
  • C Oxidation of phosphate group in ATP
  • D Addition of phosphate group to ATP

Question - 6

In mitochondria, protons accumulate in

  • A Outer membrane
  • B Intermembrane space
  • C Inner membrane
  • D Matrix

Question - 7

Which of the following biomolecules is common to respiration mediated breakdown?

  • A Acetyl CoA
  • B Glucose 6-phosphate
  • C Fructose 1,6-biphosphate
  • D Pyruvic acid

Question - 8

Which metabolite is common in respiration mediated breakdown of fats, carbohydrates and proteins?

  • A Acetyl CoA
  • B Glucose 6-phosphate
  • C Fructose 1, 6-biphosphate
  • D Pyruvic acid

Question - 9

Identify the correct terms for the given statements and select the correct answer
(i) Sudden increase in the rate of respiration during ripening of fruits.
(ii) Reduction in the consumption of respiratory substrate when mode of respiration is changed from anaerobic to aerobic.
(iii) Respiratory oxidation of carbohydrates and fats.

  • A Pasteur effect Floating respiration Climacteric respiration (i) (ii) (iii)
  • B Pasteur effect Floating respiration Climacteric respiration (ii) (iii) (i)
  • C Pasteur effect Floating respiration Climacteric respiration (iii) (ii) (i)
  • D Pasteur effect Floating respiration Climacteric respiration (ii) (i) (iii)

Question - 10

Respiratory substrates are the organic substances which are _______ during respiration to liberate energy.

  • A oxidised
  • B reduced
  • C synthesised
  • D both (a) and (b)