topic 5

Created by: francesca_321
Created on: 28-10-15 21:03

How is a leaf adapted to photosynthesis?

the thylakoid membranes have a large surface area and there are chlorophyll and electron carrier molecules in the membrane

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what do plants need and why might competition occur between plants?

They both need water and space to grow therefore they both need similar things so plants would grow while affecting the other and removing its resources so it dis

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what is an abiotic factor?

a factor that is non living in the environment of an organism

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What would happen if animals were removed if plants were growing there?

Seedlings of other species would grow, competition with existing heathland plants, heatland plants replaced, secondary succession

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What gases cause global warming?

methane and CO2

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What causes methane to increase?

rice fields

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why would carbon dioxide increase the rate of photosynthesis?

Carbon dioxide is a limiting factor for photosynthesis, the rate of photosynthesis would increase until another factor became limiting

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Why does temperature increase the rate of decay?

Decay is caused by enzymes secreted by bacteria and fungi. as the temperature increases the rate of enzyme activity will increase because the increased frequency of collisions

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What is meant by biofuel?

Fuels produced directly by plants or indirectly by animals from recent photynthesis

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How do biofuels reduce global warming?

They are carbon neutral, released as much carbon dioxide when burnt, replace fossil fuel use

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Explain speciation?

the original population contained variation, lake dried up producing small isolated populations, small populations more subject to random drift of alleles, populations had different chance mutations, different phenotypes were favoured,

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What is the name of the trophic level of shoshone when eating pupfish?

Secondary consumer

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Why isnt all enegy absorbed by secondary consumer?

pupfish use energy for growth and movement

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Other cards in this set

Card 2

Front

what do plants need and why might competition occur between plants?

Back

They both need water and space to grow therefore they both need similar things so plants would grow while affecting the other and removing its resources so it dis

Card 3

Front

what is an abiotic factor?

Back

Card 4

Front

What would happen if animals were removed if plants were growing there?

Back

Card 5

Front

What gases cause global warming?

Back

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topic 5