Cellular Respiration Mastery Quiz

What is the primary function of cellular respiration?

• To synthesize proteins

• To break down sugar molecules to produce energy

• To produce oxygen for the cell

• To replicate DNA

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Where in the cell does glycolysis occur?

• Mitochondria

• Cytoplasm

• Nucleus

• Endoplasmic reticulum

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Which of the following is NOT a product of cellular respiration?

• ATP

• Carbon dioxide

• Oxygen

• Water

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What is the end product of glycolysis?

• Glucose

• Pyruvate

• Lactic acid

• Acetyl CoA

During which phase of cellular respiration is the most ATP produced?

• Glycolysis

• Krebs Cycle

• Electron Transport Chain

• Fermentation

What is the role of oxygen in cellular respiration?

• It acts as the final electron acceptor in the electron transport chain.

• It breaks down glucose into pyruvate.

• It synthesizes ATP directly.

• It is used to create glucose during photosynthesis.

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Which of the following statements about the Krebs Cycle is true?

• It occurs in the cytoplasm.

• It does not produce any ATP.

• It produces carbon dioxide as a byproduct.

• It only occurs in animal cells.

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How many molecules of ATP are produced from one molecule of glucose during cellular respiration?

• 2

• 4

• Approximately 30-32

• Over 100

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What happens during the electron transport chain?

• ATP is used to break down glucose.

• Electrons are transferred through a series of proteins to produce ATP.

• Glucose is synthesized from carbon dioxide and water.

• Oxygen is broken down into carbon dioxide and water.

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Which of the following is a true statement about anaerobic respiration?

• It produces more ATP than aerobic respiration.

• It occurs in the presence of oxygen.

• It can result in the production of lactic acid or ethanol.

• It takes place in the mitochondria.

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