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NEET UG Respiration in Plants — practice questions — page 4

Explore 100 free Respiration in Plants questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Respiration in Plants questions and exercises with answers

Showing questions 91–100 of 100.

Respiratory quotient is the ratio ofRead the answer and worked solution →When proteins are the respiratory substrate, the RQ is aboutRead the answer and worked solution →What is true of respiratory substrates in organisms?Read the answer and worked solution →Why is fermentation not counted as anaerobic respiration?Read the answer and worked solution →Newer estimates put the ATP made per mitochondrial NADH oxidised at aboutRead the answer and worked solution →Which protein is a proton channel that uncouples electron transport from ATP synthesis?Read the answer and worked solution →In prokaryotes, the post-glycolytic reactions of aerobic respiration occur in theRead the answer and worked solution →How many carbon atoms does alpha-ketoglutarate contain?Read the answer and worked solution →What is the main purpose of fermentation for a cell without oxygen?Read the answer and worked solution →Why do muscles ferment in short strenuous bursts?Read the answer and worked solution →

Worked practice questions

Respiratory quotient is the ratio of

  1. Mass of glucose used to ATP formed
  2. Volume of CO2 evolved to O2 consumed
  3. Moles of water formed to O2 used
  4. Volume of O2 consumed to CO2 evolved
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Correct answer: B. Volume of CO2 evolved to O2 consumed

RQ divides the volume of carbon dioxide given out by the volume of oxygen taken in.

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When proteins are the respiratory substrate, the RQ is about

  1. 1.3
  2. 0.9
  3. 1.0
  4. 0.7
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Correct answer: B. 0.9

Protein respiration gives an RQ of about 0.9, between that of fats and carbohydrates.

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What is true of respiratory substrates in organisms?

  1. Several substrates are often used together
  2. Pure fat alone is the usual substrate
  3. Glucose is never used if fat is present
  4. Pure protein alone is used in seeds
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Correct answer: A. Several substrates are often used together

Organisms usually respire a mixture of substrates, and pure proteins or fats are never used alone.

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More Biology topics

Genetics and EvolutionReproduction in Organisms & PlantsBiotechnology and ApplicationsBiodiversity and ConservationThe Living World & Biological ClassificationNeural Control and Chemical CoordinationPrinciples of Inheritance and VariationAnimal Kingdom