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6 Cards in this Set

  • Front
  • Back
photoreceptor
a pigment, detects light, usually involves absorption of light
light affects:
germination, growth, formation of chlorophyll, time of flowering
etiolated plants
grown in the dark, no chloroplasts, stem is elongated, leaves not expanded, are fragile
phytochrome
a photoreceptor, exists in 2 interconvertible forms P660 and P730
far-red light is effective in ...
stimulating long-term responses
red light is effective in ...
stimulating short-tern responses