AP Biology Exam

Which step of aerobic cellular respiration makes the most ATP?

• Glycolysis

• Krebs Cycle

• Electron Transport Chain

• Light Dependent Reactions

Which of these processes takes place in the cytoplasm of a cell?

• Electron transport

• Glycolysis

• Krebs cycle

• Photosynthesis

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NGSS.HS-LS1-7

Would fermentation create any ATP molecules in its process alone without Glycolysis?

• Yes

• No

Plants use the following reactants for the light reaction

• Water and CO2

• Water and NADPH

• Water and NADP+

• NADPH and ATP

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

• NADPH

• ATP

• Water

• Oxygen gas

The NADP+ is

• oxidized during the light reaction

• reduced during the light reaction

• oxidized during the Calvin cycle

• reduced during the Calvin cycle

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NGSS.HS-LS1-5

ATP is made during the light reaction using all of the following EXCEPT

• proton pump

• hydrogen ion gradient

• electron energy from photosystem II

• NADPH donating electrons

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NGSS.HS-LS1-5

What is the function of NADP+?

• It absorbs light

• It is an electron acceptor

• It is a light-reflecting pigment

• It acts as long-term energy storage

Green plants reflect ________ light.

• Red

• Green

• All

• Red and Violet

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NGSS.MS-LS1-6

The H+ concentration gradient is used to 

• make NADPH

• split a water molecule

• generate ATP

• form water