apes 1.4

Question 1

the carbon cycle includes the movement of molecules that contain?

Answer 1

carbon (CO2, glucose, CH4) between sources and sinks.

Question 2

carbon sink

Answer 2

a carbon reservoir that stores more carbon than it releases (ex: oceans (algae and sediments), plants, soil)

Question 3

carbon source

Answer 3

processes that add carbon to the atmosphere (fossil fuel combustions, animal agriculture, deforestation releases CO2 from trees

Question 4

fossil fuels

Answer 4

oil, coal, natural gasses

Question 5

photosynthesis

Answer 5

-plants, alage, phytoplankton do this
-removes CO2 from the atmosphere and
converts it to glucose
-glucose=biological form of carbon and
stored (chemical) energy in form of
sugar
-CO2 sink

Question 6

cellular respiration

Answer 6

-done by plants and animals to release
stored energy
-uses O2 to break glucose down and release
energy
-releases CO2 into atmosphere
-CO2 source (adds CO2 to atmosphere)

Question 7

Two shared characteristics of photosynthesis and cellular respiration

Answer 7

-both processes are very quick
-cycles carbon between biosphere in
balanced amount (no net carbon
increase)