Chapter 2 Flashcards
What does biogeochemical cycles mean
How chemicals cycle around and affect life on earth
What is the composition and % make up of our atmosphere
Carbon- 1%
Oxygen - 20%
Sulfur - 1%
Nitrogen - 78%
What is the difference between rapid and slow cycling
Rapid cycling is when matter can be cycled as fast as a year or a day
Slow cycling is when matter can take up to 1000 or a million years to cycle
What is a nutrient reservoir and what are the types
A temporary storage location for matter/nutrients in their cycle
Types - abiotic and biotic
What is an abiotic nutrient reservoir
Temporarily stores non-living components of an ecosystem
Eg. atmosphere, soil, water, minerals in rocks
What’s a biotic nutrient reservoir
Temporarily stores living or once living components of an ecosystem
Eg. living or recently living organisms, coal, oil, peat
Memorize the diagram on page 43 of the textbook.
https://d2l.cbe.ab.ca/d2l/le/content/1145447/fullscreen/14598355/View
Did u get it?
What are the equations for photosynthesis and cellular respiration
Photosynthesis: 6CO2 + 6H2O + Sunlight -> 6O2 + C6H12O6
Cellular Respiration: C6H12O6 + 6H2O + ATP -> 6CO2 + 6H2O
Define a carbon sink
A reservoir that absorbs carbon
Give 4 examples of slow carbon cycling
Trees in forest
Formation of sediments
Formation of Fossil fuels
Ocean
Give 4 examples of rapid carbon cycling
Forest fires
Weathering
Burn fossil fuels
Carbon moving through the food chain
Search up the nitrogen cycle and be able to label N2 fixation, ammonification, denitrification, and nitrification
Could u do it?
How does burning fossil fuels affect the environment
Burning of fossil fuels consume O2 and release CO2 and H2O(g) which are greenhouse gases which cause the radiant energy from the sun to get trapped and warm up the earth (global warming)
How is nitrogen used in our bodies
DNA, protein
What is nitrogen fixation
It is where bacteria on plant roots convert atmospheric nitrogen (N2) into Ammonium (NH4+) for plants to use
In return bacteria get sugar
What is ammonification
It is where bacteria in soil convert NH4+ into nitrite (NO2-) and nitrate (NO3-)