Plants are ..... - They respond to changes in ....... ......
photoperiodic - day length
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What is a photoperiodic response?
A response to change in the amount of light and dark ina 24 hour cycle.
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Some plants only [1] , grow or [2] given a certain amount of [3] or [4]. Particular responses make sure they [5] or [6] at the time of [7] that suits them.
[1] germinate [2] flower [3] light [4] dark [5] grow [6] reproduce [7] year
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Why do some plants only polinate when the days are a certain length
So that that right insects are about to pollinate the flower. So that they are far enough away from winter to grow and not be killed by frost
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What are circadian rhythms?
Biological processes that follow a 24 hour cycle. They include chemical patterns, physiological patterns and patterns of behaviour.
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What three things have circadian rhythms?
animals, plants, microorganisms
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Carcadian rhythms are controlled ..... but can be influenced by .... factors
internally / evironmental
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The carcadian rhythms of animals include:
Sleep patterns, urine production.
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The carcadian rhythms of plants include:
Stomata opening. Flower opening.
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Other cards in this set
Card 2
Front
What is a photoperiodic response?
Back
A response to change in the amount of light and dark ina 24 hour cycle.
Card 3
Front
Some plants only [1] , grow or [2] given a certain amount of [3] or [4]. Particular responses make sure they [5] or [6] at the time of [7] that suits them.
Back
Card 4
Front
Why do some plants only polinate when the days are a certain length
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