AP Biology Cellular Respiration

Which process is the largest contributor to the release of CO₂ 

• Citric Acid Cycle or Krebs Cycle
• Pyruvate Oxidation
• Glycolysis
• Oxidative Phosphorylation 

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Which of the following molecules is NOT a byproduct of cellular respiration? 

• CO₂
• Heat
• H₂O
• ATP

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NGSS.HS-LS2-3

After 5 glucose molecules have been broken down in the cell, which pH value would most likely present the in matrix of the mitochondria. 

• 6
• 2
• 4
• 7

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NGSS.HS-LS1-7

What is the main job of the electron carriers in cellular respiration? 

• Transport electrons and hydrogen atoms to the electron transport chain 
• Capture energy throughout the process of cellular respiration
• Provide the reactants for the process of cellular respiration
• Pump positive hydrogen ions and shuttle electrons across the electron transport chain and contribute to chemiosmosis

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NGSS.MS-LS1-7

Which of the following statements are false?

• Glycolysis can occur with or without oxygen
• Glycolysis is the first step in both anaerobic and aerobic respiration
• Glycolysis occurs in the mitochondria
• Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH

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NGSS.HS-LS1-7

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What are the products (things that are made) in cellular respiration

• ATP
• Carbon dioxide (CO2)
• Water
• All of the above

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NGSS.HS-LS1-7

Glucose is broken down into pyruvate in a process known as 

• glycolysis
• electron transport
• the Krebs cycle
• phosphorylation

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NGSS.HS-LS2-3

What is the correct equation for cellular respiration?

• 6O₂ + C₆H₁₂O₆ -> 6CO₂ + 6H₂O + Energy
• 6O₂ + C₆H₁₂O₆ + Energy -> 6CO₂ + 6H₂O
• 6CO₂ + 6H₂O -> 6O₂ + C₆H₁₂O₆ + Energy
• 6CO₂ + 6H₂O + Energy -> 6O₂ + C₆H₁₂O₆

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of these molecules is released during the Kreb's cycle

• nitrogen
• oxygen
• hydrogen sulfide
• Carbon Dioxide (CO2)

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NGSS.HS-LS1-7

NGSS.HS-LS2-5

Glycolysis is a _______ process

• Anabolic
• Catabolic
• Single Step
• Strictly Eukaryotic

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