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

See a video clip aboutCYCLES IN NATURE - Chap 3

Videoclip (4:06 min) http://www.youtube.com/watch?v=2rapNGB6O8M

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

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

WATER CYCLE= ___________________HYDROLOGIC CYCLE

http://www.urbanrivers.org/water_cycle.html

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

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

• 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

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?

• Water vapor in the air gets cold and changes back into liquid, forming

clouds. 

Evaporation

CondensationPart 2 of the Water Cycle

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. 

Precipitation

Evaporation

Condensation

Part 1 of the Water Cycle

Part 3 of the Water Cycle

Part 2 of the Water Cycle

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

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.

Recall:

•Photosynthesis and cellular respiration are complementary processes

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

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

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

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

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

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

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

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

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-)

Bacteria that live ______________also carry out the reverse process

___________ → _____________.

THIS PROCESSIS CALLED_________________

in the soil

NITRATES & NITRITES NITROGEN GAS

DENITRIFICATION

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