AP - Unit 3: Cellular Respiration

In glycolysis, glucose is converted into two molecules of _____. 

• citric acid
• oxaloacetic acid
• pyruvic acid
• Acetyl CoA

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In aerobic respiration, the 2 pyruvic acid have to be changed to Acetyl CoA to enter

• the citric acid cycle 
• alcoholic fermentation
• lactic acid fermentation
• the ETC

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Where in the cell does aerobic respiration take place?

• Nucleus
• Cytoplasm
• Mitochondria
• Cell membrane

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Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?

• photosynthesis
• lactic acid fermentation
• aerobic respiration
• alcoholic fermentation

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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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What function does ATP carry out in living things?

• aids in protein folding and coiling
• used to capture and transfer energy
• identifies DNA start sequences for transcription
• helps maintain the fluidity of cell membranes

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What are the reactants in the equation for cellular respiration?

• oxygen and lactic acid
• carbon dioxide and water
• glucose and oxygen
• water and glucose

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Adenosine triphosphate is more commonly known as

• ADP
• ATP
• DNA
• Sugar

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Aerobic respiration produces how many ATP molecules

• 2

• 26

• 38

• 50

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The number of ATP molecules produced out of Krebs Cycle is:

• 2
• 3
• 4
• 0