AP Bio Final Review Photosynthesis/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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NGSS.HS-LS1-7

Which process does not occur in aerobic conditions? 

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

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NGSS.HS-LS2-3

Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?

• Only species Y is aerobic.
• Only species Y is anaerobic
• Both species X and Y are aerobic.
• Both species X and Y are anaerobic.

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

What is the main purpose of the Krebs cycle?

• to produce ATP
• to produce electron donators
• to produce water
• to produce carbon dioxide

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

The final electron acceptor of aerobic respiration is

• oxygen
• water
• carbon dioxide
• NAD+

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NGSS.HS-LS1-7

Purpose of fermentation is to

• make NAD+

• make carbon dioxide

• oxidize glucose

• create a proton gradient

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NGSS.HS-LS2-3

If the ETC was blocked by cyanide what would happen?

• the mitochondrion would over heat

• excessive NAD+ would build up in the cells and blood

• oxygen levels would decrease

• NADH and FADH2 would be in high levels

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NGSS.HS-LS1-7

ATP synthase directly uses _____________ to spin in order to connect phosphate onto ADP

• diffusion from a proton gradient

• diffusion from an electron gradient

• active transport of a proton gradient

• active transport of an electron gradient

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NGSS.HS-LS1-7

site of the krebs cycle

• 1
• 2
• 3
• 4

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NGSS.HS-LS1-7

Where do the light-dependent reactions occur? 

• thylakoid membrane
• stroma
• mesophyll
• mitochondria

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NGSS.HS-LS1-5