Light Response Flashcards
1
Q
What is the chromophore in phytochrome? Where is it synthesized?
A
Phytochromobilin
Chloroplast
2
Q
What is the holoprotein of phytochrome composed of?
A
Holoprotein = chromophore + apoprotein
3
Q
Pr is a ___ isomer
Pfr is a ___ isomer
A
Pr is a cis isomer
Pfr is a trans isomer
4
Q
VLRF is photoreversible?
A
False
Very0low fluence response is non-photoreversible
5
Q
Which two light responses follow the law of reciprocity?
A
Very low fluence responses
and
low-fluence responses
6
Q
What two light possibilities would make up the law of reciprocity?
A
You can either have very intense light for a short amount of time
or
very dim light for a long time
