Carbon Cycle Question Preview (ID: 62608)
Carbon Cycle.
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Which of the following is a macromolecule that contains carbon?
a) carbohydrates
b) water
c) soil
d) nitrogen dioxide
What kind of organism takes out the most of the carbon from the atmosphere?
a) Plants
b) Animals
c) Bacteria
d) Humans
Which of the following macromolecules is not organic?
a) lipids
b) water
c) protein
d) carbohydrates
C6H12O6 is also known as glucose (a carbohydrate). Where is it found?
a) autotrophs
b) heterotrophs
c) autotrophs and heterotrophs
d) abiotic factors
Combustion is another word for __________.
a) Transportation
b) Fossil Fuels
c) Respiration
d) Burning
Which of the following is an example of fossil fuels?
a) coal
b) wood
c) water
d) solar
How does the carbon in grass become part of a lion?
a) The lion eats the grass
b) Carbon is passed through the food chain
c) Carbon from grass doesn't end up in a lion.
d) The lion breathes in carbon given out by the plant
Through food chains, the carbon that is in plants moves to the animals that eat them. When an animal eats another animal, carbon is ___________________.
a) released
b) destroyed
c) absorbed
d) transferred
How is cellular respiration related to the carbon cycle?
a) Carbohydrates are passed from producers to consumers
b) Cellular respiration is not part carbon cycle
c) Autotrophs produce carbon dioxide to help heterotrophs do photosynthesis
d) Carbon dioxide is produced when we break down glucose to release ATP
What is the role of decomposers in the carbon cycle?
a) Decomposers provides energy for the plants to make food.
b) Decomposers take in carbon dioxide and release oxygen.
c) Decomposers take in oxygen and releases carbon dioxide into the air and waste into the soil.
d) Decomposers break down wastes and the bodies of dead things, returning carbon dioxide into the environment.
How does carbon enter the atmosphere in the carbon cycle?
a) cellular respiration
b) burning fossil fuel
c) decomposition of organisms
d) cellular respiration, burning fossil fuels, decomposition
How does deforestation affect the carbon cycle?
a) It causes herbivores get carbon from animals instead of plants
b) Deforestation causes carbon to enter the soil, which helps autotrophs get the carbon dioxide they need for photosynthesis
c) Cutting down trees doesn't affect the carbon cycle, only the water cycle
d) Trees take in carbon dioxide through photosynthesis, so there will be too much carbon dioxide in the atmosphere
How are humans influencing the amount of carbon in the carbon cycle?
a) By removing carbon dioxide from the atmosphere through cellular respiration.
b) By adding carbon dioxide to the atmosphere through the burning of fossil fuels.
c) By releasing carbon dioxide to the atmosphere through photosynthesis.
d) Humans are not influencing the amount of carbon dioxide in the atmosphere.
Humans increase carbon dioxide in the atmosphere, and contribute to the carbon cycle by
a) combustion from driving cars
b) planting trees
c) using alternative forms of energy instead of fossil fuels
d) using more solar power electricity
Carbon dioxide is used to make sugars (chemical energy) in which step of the carbon cycle?
a) photosythesis
b) combustion
c) respiration
d) evaporation
During the carbon cycle, in what form are carbon atoms generally returned to the atmosphere?
a) carbon dioxide
b) carbohydrates
c) carbon monoxide
d) water
Plants and trees join in the carbon cycle in a couple of ways. Which one will take carbon out of the atmosphere?
a) by absorbing water through their roots
b) by dying and decomposing into the earth making fossil fuels
c) by completing photosynthesis
d) by transpiration
Which of the following is NOT part of the carbon cycle?
a) Carbon dioxide is absorbed by plants during photosynthesis.
b) Animals emit carbon dioxide when they respire.
c) Carbon is released when fossil fuels are burned.
d) Deforestation causes more carbon to be absorbed by producers.
Why does too much carbon dioxide in the atmosphere cause climate change?
a) It cools our planet
b) Traps more heat and warms planet
c) Blocks out UV rays
d) Lets light escape to outer space
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