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- 1. Multiple-choice30 seconds1 ptWhich consists of carbon atoms?graphitediamondfullereneall of these
- 2. Multiple-choice30 seconds1 pt
Which has a 2D hexagonal layered structure?
graphite
diamond
fullerene
plastic
- 3. Multiple-choice30 seconds1 pt
What structure is shown in the diagram?
Diamond
Graphite
coal
bucky balls
- 4. Multiple-choice30 seconds1 ptWhich has weak dispersion forces in between layers?graphitediamondfullerenenone of these
- 5. Multiple-choice30 seconds1 ptWhich has a 3D hexagonal structure?graphitediamondfullerenenone of these
- 6. Multiple-choice30 seconds1 pt
Which has every carbon atom covalently bonded to four other atoms?
graphite
diamond
fullerene
coke
- 7. Multiple-choice30 seconds1 pt
Which is used as a cutting tool and in jewelry?
graphite
diamond
fullerene
coal
- 8. Multiple-choice1 minute1 ptDefine 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-choice3 minutes1 pt
Carbon is arranged in what shape to make diamond?
Triangle
Hexagon
Octahedron
Tetrahedron
- 10. Multiple-choice30 seconds1 pt
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-choice30 seconds1 pt
Which of the following is the most important source of organic carbon compounds?
Plants
Animals
Coal
Petroleum
- 12. Multiple-choice30 seconds1 pt
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-choice45 seconds1 ptStarch is a polymer formed fromfatty acids.monosaccharides.amino acids.nucleotides.
- 14. Multiple-choice30 seconds1 pt
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-choice30 seconds1 pt
Which form of pure carbon is formed of layers that slide past one another?
diamond
graphite
fullerene
nanotube
- 16. Multiple-choice30 seconds1 pt
What is another name for carbon compounds?
carbohydrates
fullerenes
hydrocarbons
organic compounds
- 17. Multiple-choice30 seconds1 pt
Proteins are nutrients used in the body mostly for
energy
building and repairing body parts
making fatty acids
a source of vitamins
- 18. Multiple-choice30 seconds1 pt
What is the name of the process by which fossil fuels are burned?
Photosynthesis
Combustion
Decomposition
Respiration
- 19. Multiple-choice30 seconds1 pt
What is the name of the process by organisms break down glucose and carbon dioxide is released?
Photosynthesis
Combustion
Decomposition
Respiration
- 20. Multiple-choice30 seconds1 pt
Which compounds contain carbon?
Carbohydrates
Proteins
Lipids (fats)
Nucleic acids (DNA)
All of the above
- 21. Multiple-choice30 seconds1 pt
At which number does photosynthesis take place?
1
2
3
4
- 22. Multiple-choice30 seconds1 pt
At which number does the burning of fossil fuels take place?
4
5
6
7
- 23. Multiple-choice30 seconds1 pt
At which number does the animal respiration take place?
1
2
3
4
- 24. Multiple-choice30 seconds1 pt
At which number does the decomposition of living organisms take place?
1
2
3
4
- 25. Multiple-choice30 seconds1 pt
At which number does consumption of plant material take place?
1
2
3
4
- 26. Multiple-choice30 seconds1 pt
Which two process release carbon dioxide into the air?
Combustion and respiration
Combustion and photosynthesis
Photosynthesis and respiration
Photosynthesis and decomposition
- 27. Multiple-choice30 seconds1 pt
The reverse of photosynthesis - Sugars are used for metabolism and change “fuel” back into CO2.
Diffusion
Weathering
Decomposition
Respiration
- 28. Multiple-choice30 seconds1 pt
Carbon enters the soil through dead plant or animal matter.
Decomposition
Respiration
Photosynthesis
Diffusion
- 29. Multiple-choice30 seconds1 pt
Organic matter, burred over millions of years
Fossil Fuels
Decomposition
Combustion
Subduction
- 30. Multiple-choice30 seconds1 ptoxygen is a gas produced by _ and used by _plants and animalsphotosynthesis and carbon dioxideanimals and plantscarbon dioxide and photosynthesis
- 31. Multiple-choice30 seconds1 ptif there is a fire in a forest, there will be less _ in the environment?nitrogenoxygen
- 32. Multiple-choice30 seconds1 ptHow is the burning of fossil fuels related to global warming?MagicFuels are hotGreenhouse effectPhotosynthesis
- 33. Multiple-choice30 seconds1 ptWhich of the following removes carbon from the atmosphere?CombustionRespirationPhotosynthesisDeath
- 34. Multiple-choice30 seconds1 ptWhich of the following is an example of a decomposer?OwlFishTreeMushroom
- 35. Multiple-choice30 seconds1 ptOrganisms that do not decompose can be buried and become what?waternutrientsairfossil fuels
- 36. Multiple-choice30 seconds1 ptWhich process converts carbon in the form of sugar into carbon dioxide gas?BioremediationPhotosynthesisRespirationTranspiration
- 37. Multiple-choice30 seconds1 pt
If the plant population decreased, the amount of carbon would _________.
Stay the same
Increase
Decrease
decrease twice
- 38. Multiple-choice30 seconds1 pt
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-choice30 seconds1 pt
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-choice30 seconds1 pt
C6H12O6is also known as glucose (sugar). Where is it found?
Plants
Animals
Both plants and animals
Neither plants or animals
