biogeochemical cycles
DESCRIPTION
http://www.animationlibrary.com/search/?keywords=recycle. BIOGEOCHEMICAL CYCLES. Water Cycle Song (1:21 min): http://www.youtube.com/watch?v=Yw275056JtA&feature=related Another Water Cycle Song (2:41 min): http://www.youtube.com/watch?v=maxLwmDxoVI&feature=related. See a video clip about - PowerPoint PPT PresentationTRANSCRIPT
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BIOGEOCHEMICALCYCLES
http://www.animationlibrary.com/search/?keywords=recycle
Water Cycle Song (1:21 min): http://www.youtube.com/watch?v=Yw275056JtA&feature=related
Another Water Cycle Song (2:41 min): http://www.youtube.com/watch?v=maxLwmDxoVI&feature=related
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See a video clip aboutCYCLES IN NATURE - Chap 3
Videoclip (4:06 min) http://www.youtube.com/watch?v=2rapNGB6O8M
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Energy is not the only thing that moves through the ecosystem.
Atoms are never destroyed . . . only transformed
http://mff.dsisd.net/Environment/Cycles.htm
Take a deep breath.The atoms you just inhaled may have been inhaled by a dinosaur millions of years ago.
http://educ.queensu.ca/~fmc/august2004/pages/dinobreath.html
ENERGY & MATTER
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4 elements make up 95% of the body in most organisms
CARBON
HYDROGEN
OXYGEN
NITROGEN
The same molecules are passed around again and again within the biosphere in___________________________BIOGEOCHEMICAL CYCLES
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WATER CYCLE= ___________________HYDROLOGIC CYCLE
http://www.urbanrivers.org/water_cycle.html
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WHY IS WATER IMPORTANT?Makes up 60-70% of your body
Oxygen and Hydrogen are found in all the ________________________: carbohydrates, proteins,
nucleic acids, lipids
Hydrogen in H2O supplies protons (H+) & electrons for_______________
http://www.lsbu.ac.uk/water/molecule.htm
building blocks of cells
photosynthesis
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WHY IS WATER IMPORTANT?
Water is a good _________________Many molecules dissolve in water so itprovides a place for chemical reactionsto happen
Water doesn’t change temperature easily so it helps with________________________
http://www.lsbu.ac.uk/water/molecule.htm
SOLVENT
TEMPERATURE REGULATION
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• Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river, lake, or ocean and goes into the air.
EvaporationPart one of the water cycle
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People sweat and plants transpire. Transpiration is the process by which plants lose water out of their leaves. Transpiration gives evaporation a bit of a hand in getting the water vapor back up into the air.
» Do plants sweat?
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• Water vapor in the air gets cold and changes back into liquid, forming
clouds.
Evaporation
CondensationPart 2 of the Water Cycle
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Rain or Snow???
Rain occurs when tiny cloud droplets collide to form bigger droplets. This keeps happening until the droplet is too heavy for the air to support it. The droplet then begins to fall, colliding with more cloud droplets as it gains in size. If the liquid water does not encounter a deep layer of sub-freezing air, it will remain liquid and fall to the ground as rain.
Snow occurs when the layer of the atmosphere from the surface of the earth through the cloud is entirely below freezing. The precipitation falls from the cloud as snow and does not melt at all while falling to the ground.
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Precipitation
Evaporation
Condensation
Part 1 of the Water Cycle
Part 3 of the Water Cycle
Part 2 of the Water Cycle
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The return of water tothe surface in the form ofrain, snow, sleet, hail, etc.= ____________________
The evaporation of water from the surface of plant leaves = ________________
http://www.css.cornell.edu/faculty/hmv1/watrshed/Etrans.htm
TRANSPIRATION
PRECIPITATION
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PH ONLINE LINK Put in code: cbp-2033 Choose Start
Image edited from: http://www.cotf.edu/ete/modules/msese/earthsysflr/water.html
WATER CYCLE
2.
1.
4.3. 6.
5.
2. 2.
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Recall:
•Photosynthesis and cellular respiration are complementary processes
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4 main CARBON reservoirs in BIOSPHERE
CO2 inatmosphere
CO2 inOcean
BIOLOGY; Miller and Levine; Prentice Hall; 2006
1.In ____________ as CO2 gas 2.In _______ as dissolved CO2 gas3.On _______ in organisms, rocks, soil4.__________ as coal & petroleum (fossil
fuels) and calcium carbonate in rocks
atmosphereocean
landUnderground
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Where does CO2 in atmosphere come from? CO2 in
atmosphere
CO2 inOcean
BIOLOGY; Miller and Levine; Prentice Hall; 2006
1.________________ 2.______________ 3._________________4.____________ of dead organisms
Volcanic activityHuman activity (burning fossil fuels)Cellular respirationDecomposition
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WHY IS CARBON IMPORTANT?
Found in all the _______________ of cells: carbohydrates, proteins,
nucleic acids, lipids
Image by Riedell
http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm
BUILDING BLOCKS
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WHY IS CARBON IMPORTANT?
Carbon in CO2 provides the atoms for __________ production during __________________... the fuel that all living things depend on.
http://www.science.siu.edu/plant-biology/PLB117/JPEGs%20CD/0076.JPG http://www.biologyclass.net/mitochondria.jpg
GLUCOSEPHOTOSYNTHESIS
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CARBON CYCLECO2 in atmosphere
CO2 in ocean
BIOLOGY; Miller and Levine; Prentice Hall; 2006
Carbon videoclip (2:34min): http://www.youtube.com/watch?v=jNIQ9KTMimQ&feature=related
NASA Carbon (5:39min): http://www.youtube.com/watch?v=HrIr3xDhQ0E
respiration
decomposition
deposition
photosynthesis
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WHY IS NITROGEN IMPORTANT?
Image by Riedell
__________________make DNA and RNA
Adenine (nitrogen base) is used in _______
Makes AMINO part of _________ (proteins)
Image by Riedell
http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm
NITROGEN BASES
ATP
amino acids
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79% of the atmosphere is made up of NITROGEN gas
(N2)
Image by Riedell Image by Riedell
http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm
BUT we _____ use the nitrogen gas we breathe!
The bond in N2 gas is sostrong it can only be broken by__________________________________________________
CAN’T
lightningVolcanic activityfew special bacteria
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http://www.slic2.wsu.edu:82/hurlbert/micro101/images/101nodules21.gif
Bacteria that live ______________and in symbiotic relationships withplants called legumes take nitrogen from the atmosphere and turn it into ______________, a form that is usable by plants.
THIS PROCESSIS CALLED_________________
in the soil
AMMONIA (NH3)
NITROGEN FIXATION
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Image from: http://www.utdallas.edu/images/departments/biology/misc/gonzalez-image.jpg and http://www.cibike.org/CartoonEating.gif modified by Riedell
Other bacteria in the soil convertammonia into ________________& _________________which plants can also use. The nitrogen we need for proteins, ATP, and nucleic acids comes from
the ___________ ___________ we breathe!
NITRATES (NO3- )
FOOD WE EATNOT THE AIR
NITRITES (NO2-)
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Bacteria that live ______________also carry out the reverse process
___________ → _____________.
THIS PROCESSIS CALLED_________________
in the soil
NITRATES & NITRITES NITROGEN GAS
DENITRIFICATION
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N2 in Atmosphere
Ammonia
Nitrates & nitrites
Section 3-3
NITROGEN CYCLE
BIOLOGY; Miller and Levine; Prentice Hall; 2006
Uptake by producers
Atmospheric N fixation
Decomposition, excretion
Denitrification
Bacterial N fixation