Light energy is abosrbed by the cholorophyll which is found in the cholorplasts this energy is used by converting carbon dioxide and water into glucose
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What factors effect Photosynthesis?
Light intensity, Carbon dioxide concentration and temperature
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How does temperature effect photosynthesis?
It if gets to cold the rate of photosynthesis decreases and plants cant respire if it gets too hot
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Why do plants store glucose?
At night plants cant respire because there is no light so they store it so they can use it later
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What do plants store glucose as?
Starch, fats and oils
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What are the uses of glucose in plants?
To produce cellulose which strengthens the cell wall and produce protiens such as enzymes and chlorophyll
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What are the physical factors that affect organisms?
Temperature, amount of light and avaliability of water, nutrients, carbon dioxide and oxygen
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Define: Environment
All the conditions that surround a living organism
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Define: Habitat
A place where an organism lives
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Define: Population
All the members of a single species that live in a habitat
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Define: Community
All the populations of different organisms that live together in a habitat
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Define: Ecosystem
A community and the habitat in which it lives
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What equiptment can you use to collect quantative data?
Transects and Quadrats
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What is a transect and how does it collect data?
A transect is a line across a habitat, the number of organisms of each species can be obcerved and recorded along the transect
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What is a quadrat and how does it collect data?
It is a square that contains smaller squares usually 5x5 The organisms underneath the square can be identified and then counted
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How do you keep the results from using a quadrat fair?
Placing it randomly, the validity and reproducability of the results increases as the results from more quadrats are analysed
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How do you analyse the results from quadrats and transects?
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