Unit 3: Cellular Energetics (AP Bio)

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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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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Which process least amount of ATP in cells? 

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

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Which molecule is not an important molecule regarding Cellular Respiration? 

• H₂O
• NADH
• O₂
• CO₂

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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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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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Which process does not occur in aerobic conditions? 

• Fermentation
• Pyruvate Oxidation
• Citric Acid Cycle or Krebs cycle 
• Oxidative Phosphorylation 

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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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What is one function of the other pigments  besides chlorophyll, in the chloroplast?

• to block damaging wavelengths of light
• to absorb different wavelengths than the chloroplasts
• to provide different colors to the leaves
• to transfer energy to a separate photosystem beside the one using chlorophyll a and b.

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