What Happens with P_r and P_fr at Night (Assuming No

question 10

Multiple Choice

What happens with P_r and P_fr at night (assuming no artificial lights) ?

• A)P_r absorbs far-red light and is converted to P_fr.
• B)P_fr absorbs red light and is converted to P_r.
• C)P_fr absorbs far-red light and is converted to P_r.
• D)P_fr is converted to P_r.

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