AP Biology Cellular Respiration Review

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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NGSS.HS-LS1-7

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

• CO₂
• Heat
• H₂O
• ATP

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

If the delta G of a reaction is negative, which response shows the best conclusion for that reaction? 

• The reaction will release more energy than was needed to form the reaction.
• Energy from the reaction can be used to do work. 
• Energy is absorbed by the reaction which then can be used to power other reactions. 
• Energy is absorbed within the reaction and distributed unevenly throughout the molecule. 

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NGSS.HS-PS1-4

If ADP is phosphorylated then what is this indicating in the reaction? 

• ADP is forming into ATP
• ADP is becoming AMP
• ADP is being used to power other reactions
• ADP is being created by the reaction

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NGSS.HS-LS1-7

Why is ATP considered the most significant energy carrying molecule? 

• It's delta G is negative. 
• ATP has different bond energy between its phosphate groups. 
• ATP can hold large amounts of energy between all of its bonds. 
• ATP's positive delta G contributes to the large amounts of energy between its 3rd and 2nd phosphate groups. 

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NGSS.HS-LS1-7

NGSS.HS-PS1-4

Which process least amount of ATP in cells? 

• Glycolysis
• Citric Acid cycle
• Lactic acid Fermentation
• Pyruvate Oxidation

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NGSS.HS-LS2-3

Which molecule is not an important molecule regarding Cellular Respiration? 

• H₂O
• NADH
• O₂
• CO₂

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NGSS.HS-LS1-7

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

When NADH is reduced and oxidized, which response best describes what is lost or gained? 

• only Electrons 
• 2 stable Hydrogen atoms 
• Pair of electrons 
• 2 ATP 

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NGSS.HS-LS1-7

Pyruvate Oxidation creates a specific numbered carbon molecule at the end of it's process. What is the number of carbons for this molecule? 

• 2
• 3
• 6
• 1

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NGSS.HS-LS1-7