Carbon Cycle

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  • Created by: J.E.C.
  • Created on: 11-01-14 16:07
Why is the concentration of CO2 greater at night than during the day?
Due to absence of light, no photosynthesis takes place. Respiration is still occurring.
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Give two human activities that could be responsible for the rise in atmospheric CO2 levels?
1. Combustion of fossil fuels. 2. Deforestation - removed photosynthetic biomass so less carbon dioxide is removed from the atmosphere.
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As CO2 is a ___ ___, additional production contributes to ___ ___?
greenhouse gas, global warming
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Describe how the carbon cycle is evident in our oceans?
Any excess CO2 in the atmosphere absorbs into the ocean. Vice versa. Aquatic photosynthetic organisms use this to form the macromolecules that form their bodies > passes along food chain or they die and decomposers .
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What happens to the carbon dioxide when the aquatic photosynthetic organism dies?
Saprobiotic microorganisms break down complex molecules into smaller, soluble ones and absorb by diffusion > then released by respiration in the decomposer.
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Other cards in this set

Card 2

Front

Give two human activities that could be responsible for the rise in atmospheric CO2 levels?

Back

1. Combustion of fossil fuels. 2. Deforestation - removed photosynthetic biomass so less carbon dioxide is removed from the atmosphere.

Card 3

Front

As CO2 is a ___ ___, additional production contributes to ___ ___?

Back

Preview of the front of card 3

Card 4

Front

Describe how the carbon cycle is evident in our oceans?

Back

Preview of the front of card 4

Card 5

Front

What happens to the carbon dioxide when the aquatic photosynthetic organism dies?

Back

Preview of the front of card 5

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