| Syllabus sections » |
4.3 Carbon cycling
Description
| Nature of science: Making accurate, quantitative measurements—it is important to obtain reliable data on the concentration of carbon dioxide and methane in the atmosphere. (3.1) |
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Understandings:
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Utilization: Syllabus and cross-curricular links: Physics Topic 8.1 Energy sources Chemistry Topic C.2 Fossil fuels Topic C.5 Environmental impact—global warming Aims:
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Directly related questions
- 20N.1.SL.TZ0.18: Under certain conditions, living organisms on Earth produce and release methane. What favours the...
- 20N.1.SL.TZ0.18: Under certain conditions, living organisms on Earth produce and release methane. What favours the...
- 20N.1.SL.TZ0.19: The oceans absorb much of the carbon dioxide in the atmosphere. The combustion of fossil fuels...
- 20N.1.SL.TZ0.19: The oceans absorb much of the carbon dioxide in the atmosphere. The combustion of fossil fuels...
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20N.2.HL.TZ0.4b:
Outline the role of methanogenic archaeans in the movement of carbon in ecosystems.
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20N.2.HL.TZ0.4b:
Outline the role of methanogenic archaeans in the movement of carbon in ecosystems.
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20N.2.HL.TZ0.b:
Outline the role of methanogenic archaeans in the movement of carbon in ecosystems.
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20N.2.HL.TZ0.4c:
Describe how autotrophs absorb light energy
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20N.2.HL.TZ0.4c:
Describe how autotrophs absorb light energy
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20N.2.HL.TZ0.c:
Describe how autotrophs absorb light energy
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17N.2.SL.TZ0.07c:
Describe the process of peat formation.
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17N.2.SL.TZ0.07c:
Describe the process of peat formation.
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17N.2.SL.TZ0.c:
Describe the process of peat formation.
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21M.2.SL.TZ2.4b:
The crustacean and the jellyfish obtain carbon compounds by feeding. State one source of carbon for marine organisms, other than feeding.
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21M.2.SL.TZ2.4b:
The crustacean and the jellyfish obtain carbon compounds by feeding. State one source of carbon for marine organisms, other than feeding.
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21M.2.SL.TZ2.b:
The crustacean and the jellyfish obtain carbon compounds by feeding. State one source of carbon for marine organisms, other than feeding.
- 22M.1.HL.TZ2.14: Which process contributes to the formation of limestone? A. Partial decomposition of biomass in...
- 22M.1.HL.TZ2.14: Which process contributes to the formation of limestone? A. Partial decomposition of biomass in...
- 22M.1.SL.TZ1.19: The diagram shows a simplified carbon cycle. Which processes are taking place at X and Y?
- 22M.1.SL.TZ1.19: The diagram shows a simplified carbon cycle. Which processes are taking place at X and Y?
- 18M.1.HL.TZ2.22: Which processes occur in an ecosystem? I. Biomass increases in each successive trophic...
- 18M.1.HL.TZ2.22: Which processes occur in an ecosystem? I. Biomass increases in each successive trophic...
- 18M.2.SL.TZ2.6a: Outline the roles bacteria play in the carbon cycle.
- 18M.2.SL.TZ2.6a: Outline the roles bacteria play in the carbon cycle.
- 18M.2.SL.TZ2.a: Outline the roles bacteria play in the carbon cycle.
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18M.2.SL.TZ1.5c:
The structure of organisms is based on organic molecules containing carbon. Explain the cycling of carbon in an ecosystem.
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18M.2.SL.TZ1.5c:
The structure of organisms is based on organic molecules containing carbon. Explain the cycling of carbon in an ecosystem.
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18M.2.SL.TZ1.c:
The structure of organisms is based on organic molecules containing carbon. Explain the cycling of carbon in an ecosystem.
- 18M.1.SL.TZ2.19: What describes a possible cause of a negative carbon flux in the atmosphere due to processes...
- 18M.1.SL.TZ2.19: What describes a possible cause of a negative carbon flux in the atmosphere due to processes...
- 19M.1.HL.TZ2.23: The global carbon cycle involves sinks where carbon is stored, and fluxes where carbon is...
- 19M.1.HL.TZ2.23: The global carbon cycle involves sinks where carbon is stored, and fluxes where carbon is...
- 19N.1.SL.TZ0.20: What material is formed when organic matter is not fully decomposed in acidic waterlogged...
- 19N.1.SL.TZ0.20: What material is formed when organic matter is not fully decomposed in acidic waterlogged...
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22N.1.HL.TZ0.16:
The diagram shows part of the carbon cycle involving methane.
[Source: NASA GISS, n.d. Rough schematic of methane sources and sinks. [diagram online] Available at:
https://www.giss.nasa.gov/research/features/200409_methane/ [Accessed 26 October 2021].]Which conditions favour methane production in W, X and Y?
A. Presence of eubacteria and organic matter
B. Presence of archaeans and waterlogged soil
C. Presence of eubacteria and waterlogged soil
D. Presence of archaeans and oxygen
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22N.1.HL.TZ0.16:
The diagram shows part of the carbon cycle involving methane.
[Source: NASA GISS, n.d. Rough schematic of methane sources and sinks. [diagram online] Available at:
https://www.giss.nasa.gov/research/features/200409_methane/ [Accessed 26 October 2021].]Which conditions favour methane production in W, X and Y?
A. Presence of eubacteria and organic matter
B. Presence of archaeans and waterlogged soil
C. Presence of eubacteria and waterlogged soil
D. Presence of archaeans and oxygen
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17N.1.SL.TZ0.18:
The diagram shows the carbon cycle.
[Source: © International Baccalaureate Organization 2017]
Which two processes correspond to the labelled arrows?
A. K is combustion and L is catabolism.
B. J is anabolism and K is respiration.
C. J is combustion and K is respiration.
D. J is anabolism and L is catabolism.
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17N.1.SL.TZ0.18:
The diagram shows the carbon cycle.
[Source: © International Baccalaureate Organization 2017]
Which two processes correspond to the labelled arrows?
A. K is combustion and L is catabolism.
B. J is anabolism and K is respiration.
C. J is combustion and K is respiration.
D. J is anabolism and L is catabolism.
- 18M.1.SL.TZ1.18: Which conditions favour peat formation?
- 18M.1.SL.TZ1.18: Which conditions favour peat formation?
- 19M.1.SL.TZ1.19: Which organisms produce methane in anaerobic environments such as waterlogged soils? A....
- 19M.1.SL.TZ1.19: Which organisms produce methane in anaerobic environments such as waterlogged soils? A....
- 19M.1.SL.TZ2.17: In an ecosystem, in the transfer of carbon from producers to consumers, what is carbon...
- 19M.1.SL.TZ2.17: In an ecosystem, in the transfer of carbon from producers to consumers, what is carbon...
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19M.2.SL.TZ2.3a.ii:
The table shows the global carbon budget over two decades; the years 1990 to 1999 and 2000 to 2009.
[Source: © International Baccalaureate Organization 2019]
Using the table, explain causes of the changes in carbon flux over the two decades.
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19M.2.SL.TZ2.3a.ii:
The table shows the global carbon budget over two decades; the years 1990 to 1999 and 2000 to 2009.
[Source: © International Baccalaureate Organization 2019]
Using the table, explain causes of the changes in carbon flux over the two decades.
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19M.2.SL.TZ2.a.ii:
The table shows the global carbon budget over two decades; the years 1990 to 1999 and 2000 to 2009.
[Source: © International Baccalaureate Organization 2019]
Using the table, explain causes of the changes in carbon flux over the two decades.
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19M.3.HL.TZ2.3a:
Calculate the percentage increase in the use of liquid fuels from 1950 to 1975.
%
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19M.3.HL.TZ2.3a:
Calculate the percentage increase in the use of liquid fuels from 1950 to 1975.
%
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19M.3.HL.TZ2.a:
Calculate the percentage increase in the use of liquid fuels from 1950 to 1975.
%
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19M.3.HL.TZ2.3b:
Referring to the data, compare and contrast the changes in the use of the different fuels between 1950 and 1975.
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19M.3.HL.TZ2.3b:
Referring to the data, compare and contrast the changes in the use of the different fuels between 1950 and 1975.
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19M.3.HL.TZ2.b:
Referring to the data, compare and contrast the changes in the use of the different fuels between 1950 and 1975.
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19N.1.SL.TZ0.19:
In the diagram, which of the processes labelled A to D transfers the largest mass of carbon per year in a woodland ecosystem?
[Source: © International Baccalaureate Organization 2019]
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19N.1.SL.TZ0.19:
In the diagram, which of the processes labelled A to D transfers the largest mass of carbon per year in a woodland ecosystem?
[Source: © International Baccalaureate Organization 2019]
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20N.2.SL.TZ0.5c:
Explain the transformations of carbon compounds in the carbon cycle.
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20N.2.SL.TZ0.5c:
Explain the transformations of carbon compounds in the carbon cycle.
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20N.2.SL.TZ0.c:
Explain the transformations of carbon compounds in the carbon cycle.
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21M.2.SL.TZ2.4a:
State one process that results in the loss of carbon dioxide from a marine organism such as a crustacean or a jellyfish.
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21M.2.SL.TZ2.4a:
State one process that results in the loss of carbon dioxide from a marine organism such as a crustacean or a jellyfish.
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21M.2.SL.TZ2.a:
State one process that results in the loss of carbon dioxide from a marine organism such as a crustacean or a jellyfish.
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21N.1.HL.TZ1.16:
The diagram shows the carbon flux in gigatonnes per year between some of the Earth’s global reservoirs.
[Source: Figure 7.3 and Table 7.1 from Denman, K.L., G. Brasseur, A. Chidthaisong, P. Ciais, P.M. Cox, R.E. Dickinson, D.
Hauglustaine, C. Heinze, E. Holland, D. Jacob, U. Lohmann, S Ramachandran, P.L. da Silva Dias, S.C. Wofsy and
X. Zhang, 2007: Couplings Between Changes in the Climate System and Biogeochemistry. In: Climate Change
2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the
Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt,
M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.]What can be deduced from the information in the diagram?
A. Arrows S are mainly due to respiration of marine plants and animals.
B. Photosynthesis is a component of both arrows Q and S.
C. Every day, more carbon is removed from the ocean than is added.
D. Ocean carbon is stored as dissolved calcium carbonate.
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21N.1.HL.TZ1.16:
The diagram shows the carbon flux in gigatonnes per year between some of the Earth’s global reservoirs.
[Source: Figure 7.3 and Table 7.1 from Denman, K.L., G. Brasseur, A. Chidthaisong, P. Ciais, P.M. Cox, R.E. Dickinson, D.
Hauglustaine, C. Heinze, E. Holland, D. Jacob, U. Lohmann, S Ramachandran, P.L. da Silva Dias, S.C. Wofsy and
X. Zhang, 2007: Couplings Between Changes in the Climate System and Biogeochemistry. In: Climate Change
2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the
Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt,
M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.]What can be deduced from the information in the diagram?
A. Arrows S are mainly due to respiration of marine plants and animals.
B. Photosynthesis is a component of both arrows Q and S.
C. Every day, more carbon is removed from the ocean than is added.
D. Ocean carbon is stored as dissolved calcium carbonate.
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22N.1.SL.TZ0.19:
Carbon sinks are any reservoirs that absorb and store carbon dioxide from the atmosphere. Which process increases the size of the carbon sink in oceans?
A. Photosynthesis
B. Respiration
C. Ocean acidification
D. Decomposition
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22N.1.SL.TZ0.19:
Carbon sinks are any reservoirs that absorb and store carbon dioxide from the atmosphere. Which process increases the size of the carbon sink in oceans?
A. Photosynthesis
B. Respiration
C. Ocean acidification
D. Decomposition