Unit Test

Question 1

What happens when light energy excites electrons in photosystem II?

Revolt · Accepted Answer

Electrons are released into the electron transport system.

Question 2

What did you include in your response?

Revolt · Accepted Answer

Joseph Priestly observed that a candle alone in a jar did not stay lit for long.; Priestly observed that adding a plant to the jar caused the candle to stay lit longer.; Priestly inferred that plants give off oxygen during photosynthesis, providing the oxygen needed for the candle to burn.; Priestly inferred that the burning candle gave off carbon dioxide, which was used by the plant.

Question 3

Where does the electron-acceptor molecule transfer electrons?

Revolt · Accepted Answer

photosystem I

Question 4

Which molecule is formed when the protein ferrodoxin transfers electrons to an electron carrier?

Revolt · Accepted Answer

NADPH

Unit Test Answers

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