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AP Intermediate 1st Year Respiration in Plants — practice questions — page 2

Explore 40 free Respiration in Plants questions in AP Intermediate 1st Year 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 31–40 of 40.

Besides carbon dioxide and energy, what else is released during respiration?Read the answer and worked solution →In glycolysis, glucose undergoes partial oxidation to form how many pyruvic acid molecules?Read the answer and worked solution →The term glycolysis comes from Greek words for splitting and:Read the answer and worked solution →Krebs cycle achieves the complete oxidation of glucose and is also called:Read the answer and worked solution →In anaerobic organisms, glycolysis is described as:Read the answer and worked solution →In fermentation by yeast, pyruvic acid is converted to carbon dioxide and:Read the answer and worked solution →Which two enzymes catalyse alcoholic fermentation?Read the answer and worked solution →In exercising muscle with inadequate oxygen, pyruvic acid is reduced to:Read the answer and worked solution →In fermentation, what proportion of the energy in glucose is released?Read the answer and worked solution →Reactions catalysed by pyruvic dehydrogenase require coenzyme A and:Read the answer and worked solution →

Worked practice questions

Besides carbon dioxide and energy, what else is released during respiration?

  1. Wools
  2. Woods
  3. Water
  4. Waxes
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Correct answer: C. Water

1. Oxygen is consumed and three products are named. 2. Two of them are carbon dioxide and energy. 3. During respiration, oxygen is utilised and carbon dioxide, water and energy are released. 4. So the answer is water. _Source: syllabus Biology, Ch 12 'Respiration in Plants'_

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In glycolysis, glucose undergoes partial oxidation to form how many pyruvic acid molecules?

  1. Nine of them
  2. Seven of them
  3. Twelve of them
  4. Two of them
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Correct answer: D. Two of them

1. Glucose has six carbons and pyruvic acid has three. 2. The split is even. 3. Glucose undergoes partial oxidation to form two molecules of pyruvic acid. 4. So the answer is two of them. _Source: syllabus Biology, Ch 12 'Respiration in Plants'_

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The term glycolysis comes from Greek words for splitting and:

  1. Sugar
  2. Silver
  3. Sulphur
  4. Solvent
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Correct answer: A. Sugar

1. The process splits one particular molecule. 2. That molecule is glucose. 3. Glycolysis comes from the Greek words glycos for sugar and lysis for splitting. 4. So the answer is sugar. _Source: syllabus Biology, Ch 12 'Respiration in Plants'_

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The Living World & Biological ClassificationPhotosynthesis in Higher PlantsAnimal KingdomBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionLocomotion and MovementNeural Control and Chemical Coordination