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The Importance Of Carbon
Test Description: Organic Chemistry
Instructions: Answer all questions to get your test result.
1) Which substance is considered a building block for all living things?
A
glucose
B
hydrogen
C
protein
D
carbon
2) Which reason best explains why carbon is able to form macromolecules?
A
Carbon is found in all living things.
B
Carbon can only bond with itself.
C
Carbon is a very large element.
D
Carbon can bond with many elements.
3) Which macromolecule provides the blueprint for living things, by storing and transmitting genetic information?
A
lipid
B
carbohydrate
C
protein
D
nucleic acid
4) Which pair of molecules both contain carbon atoms?
A
water and carbohydrates
B
fats and proteins oxygen gas and fats
C
nucleic acids and water
D
fats and proteins
5) What happens when humans burn fossil fuels?
A
Carbon is released into the atmosphere.
B
Carbon is removed from the atmosphere.
C
Temperatures on Earth decrease.
D
Carbon begins to form natural gas
6) Which process is performed by both plants and animals to break down sugars to provide energy in the form of ATP?
A
decomposition
B
cellular respiration
C
glycolysis
D
photosynthesis
7) By which process are fossil fuels formed?
A
burning
B
photosynthesis
C
decomposition
D
cellular respiration
8) By which process do plants obtain carbon from the atmosphere?
A
cellular respiration
B
photosynthesis
C
decomposition
D
burning fossil fuels
9) What is the primary function of the carbon cycle?
A
recycling the supply of water on Earth
B
creating macromolecules
C
creating fossil fuels
D
recycling the supply of carbon on Earth
10) How will the level of carbon in the atmosphere change if humans do nothing to reduce their impact on the carbon cycle?
A
Carbon in the atmosphere will remain the same.
B
Carbon will be removed from the atmosphere altogether.
C
The level of carbon in the atmosphere will decrease.
D
The level of carbon in the atmosphere will increase.
*select an answer for all questions
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