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- 1. Multiple ChoiceWhich consists of carbon atoms?graphitediamondfullereneall of these
- 2. Multiple Choice
Which has a 2D hexagonal layered structure?
graphite
diamond
fullerene
plastic
- 3. Multiple Choice
What structure is shown in the diagram?
Diamond
Graphite
coal
bucky balls
- 4. Multiple ChoiceWhich has weak dispersion forces in between layers?graphitediamondfullerenenone of these
- 5. Multiple ChoiceWhich has a 3D hexagonal structure?graphitediamondfullerenenone of these
- 6. Multiple Choice
Which has every carbon atom covalently bonded to four other atoms?
graphite
diamond
fullerene
coke
- 7. Multiple Choice
Which is used as a cutting tool and in jewelry?
graphite
diamond
fullerene
coal
- 8. Multiple ChoiceDefine the term allotropesAtoms with same proton number but different number of neutronsAtoms with same proton number but different mass numberAtoms in different arrangement in structureAtoms in different arrangement and different physical form
- 9. Multiple Choice
Carbon is arranged in what shape to make diamond?
Triangle
Hexagon
Octahedron
Tetrahedron
- 10. Multiple Choice
Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2. Carbon dioxide gas is
an element made of carbon and oxygen atoms.
a solution made of carbon and oxygen atoms.
a compound of carbon and oxygen atoms.
a mixture of carbon and oxygen atoms.
- 11. Multiple Choice
Which of the following is the most important source of organic carbon compounds?
Plants
Animals
Coal
Petroleum
- 12. Multiple Choice
Which of the following is true for all hydrocarbon?
They have carbon and hydrogen atoms only in the molecule.
They have carbon, oxygen and hydrogen atoms in the molecule.
They are in the same homologous series.
They are saturated compounds.
- 13. Multiple ChoiceStarch is a polymer formed fromfatty acids.monosaccharides.amino acids.nucleotides.
- 14. Multiple Choice
Carbon is able to bond with atoms of other elements in many different ways because it has
six protons
four electrons
six valence electrons
four valence electrons
- 15. Multiple Choice
Which form of pure carbon is formed of layers that slide past one another?
diamond
graphite
fullerene
nanotube
- 16. Multiple Choice
What is another name for carbon compounds?
carbohydrates
fullerenes
hydrocarbons
organic compounds
- 17. Multiple Choice
Proteins are nutrients used in the body mostly for
energy
building and repairing body parts
making fatty acids
a source of vitamins
- 18. Multiple Choice
What is the name of the process by which fossil fuels are burned?
Photosynthesis
Combustion
Decomposition
Respiration
- 19. Multiple Choice
What is the name of the process by organisms break down glucose and carbon dioxide is released?
Photosynthesis
Combustion
Decomposition
Respiration
- 20. Multiple Choice
Which compounds contain carbon?
Carbohydrates
Proteins
Lipids (fats)
Nucleic acids (DNA)
All of the above
- 21. Multiple Choice
At which number does photosynthesis take place?
1
2
3
4
- 22. Multiple Choice
At which number does the burning of fossil fuels take place?
4
5
6
7
- 23. Multiple Choice
At which number does the animal respiration take place?
1
2
3
4
- 24. Multiple Choice
At which number does the decomposition of living organisms take place?
1
2
3
4
- 25. Multiple Choice
At which number does consumption of plant material take place?
1
2
3
4
- 26. Multiple Choice
Which two process release carbon dioxide into the air?
Combustion and respiration
Combustion and photosynthesis
Photosynthesis and respiration
Photosynthesis and decomposition
- 27. Multiple Choice
The reverse of photosynthesis - Sugars are used for metabolism and change “fuel” back into CO2.
Diffusion
Weathering
Decomposition
Respiration
- 28. Multiple Choice
Carbon enters the soil through dead plant or animal matter.
Decomposition
Respiration
Photosynthesis
Diffusion
- 29. Multiple Choice
Organic matter, burred over millions of years
Fossil Fuels
Decomposition
Combustion
Subduction
- 30. Multiple Choiceoxygen is a gas produced by _ and used by _plants and animalsphotosynthesis and carbon dioxideanimals and plantscarbon dioxide and photosynthesis
- 31. Multiple Choiceif there is a fire in a forest, there will be less _ in the environment?nitrogenoxygen
- 32. Multiple ChoiceHow is the burning of fossil fuels related to global warming?MagicFuels are hotGreenhouse effectPhotosynthesis
- 33. Multiple ChoiceWhich of the following removes carbon from the atmosphere?CombustionRespirationPhotosynthesisDeath
- 34. Multiple ChoiceWhich of the following is an example of a decomposer?OwlFishTreeMushroom
- 35. Multiple ChoiceOrganisms that do not decompose can be buried and become what?waternutrientsairfossil fuels
- 36. Multiple ChoiceWhich process converts carbon in the form of sugar into carbon dioxide gas?BioremediationPhotosynthesisRespirationTranspiration
- 37. Multiple Choice
If the plant population decreased, the amount of carbon would _________.
Stay the same
Increase
Decrease
decrease twice
- 38. Multiple Choice
Which is a true statement?
Humans depend on oxygen, plants depend on carbon dioxide
Plants produce carbon dioxide
Humans depend on carbon dioxide, plants depend on oxygen
Humans don't depend on plants for the air they need
- 39. Multiple Choice
Which describes the relationship between plants and animals in the carbon cycle?
Plants produce and release oxygen that animals need
Plants produce and release carbon dioxide that animals need
Animals produce and release oxygen that plants need
Animals produce oxygen that plants turn into carbon dioxide
- 40. Multiple Choice
C6H12O6is also known as glucose (sugar). Where is it found?
Plants
Animals
Both plants and animals
Neither plants or animals
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