9/10 Bell Work Cellular Respiration

What is the main purpose of cellular respiration in organisms?

• To produce oxygen for breathing

• To obtain energy for cellular activities

• To create food from sunlight

• To store waste products

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What are the waste products of cellular respiration that are breathed out?

• Glucose and oxygen

• Carbon dioxide and water

• ATP and glucose

• Oxygen and ATP

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How many main stages are there in cellular respiration?

• One

• Two

• Three

• Four

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Which stage of cellular respiration produces the most ATP?

• Glycolysis

• Krebs Cycle

• Electron Transport Chain

• Fermentation

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Which stages of cellular respiration require oxygen (are aerobic)?

• Only Glycolysis

• Krebs Cycle and Electron Transport Chain

• Only Krebs Cycle

• Only Electron Transport Chain

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If a cell is deprived of oxygen, which stage of cellular respiration can still occur?

• Krebs Cycle

• Electron Transport Chain

• Glycolysis

• All stages

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Which part of the mitochondria is referred to as the innermost compartment?

• Matrix

• Cristae

• Outer membrane

• Inner membrane

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What is the main purpose of glycolysis in cellular respiration?

• To break down glucose and produce ATP

• To produce oxygen

• To create proteins

• To store fat

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Which of the following is NOT required for glycolysis to occur?

• Oxygen

• Glucose

• Enzymes

• Cytoplasm

Which chemical equation best represents glycolysis?

• C₆H₁₂O₆ → 2 pyruvic acid + 2 ATP

• C₆H₁₂O₆ + O₂ → CO₂ + H₂O

• 2 pyruvic acid → glucose + 2 ATP

• ATP + glucose → pyruvic acid + O₂

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