The Light Reactions Are Generally Presented in Zig-Zag Patterns,as Shown

question 24

Multiple Choice

The light reactions are generally presented in zig-zag patterns,as shown in the accompanying figure.What is the significance of the primary electron receptor shown at position 2 being slightly higher than the primary electron receptor shown at position 3?

• A)The electron that has been accepted gains energy as it leaves the primary electron receptor at 2 and heads to the primary electron receptor at position 3.
• B)The primary electron receptor at 2 has slightly less energy than the primary electron receptor at position 3.
• C)The primary electron receptor at position 2 comes before the primary electron receptor at position 3.
• D)Since electrons have given off energy in the electron transport chain,they can be boosted higher by the second photosystem. Answer B

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