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BIOGEOCHEMICAL CYCLES

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

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BIOGEOCHEMICAL CYCLES

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  1. http://www.animationlibrary.com/search/?keywords=recycle BIOGEOCHEMICALCYCLES 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

  2. See a video clip about CYCLES IN NATURE - Chap 3 Videoclip (4:06 min) http://www.youtube.com/watch?v=2rapNGB6O8M

  3. http://mff.dsisd.net/Environment/Cycles.htm ENERGY & MATTER Energy is not the only thing that moves through the ecosystem. Atoms are never destroyed . . . only transformed 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

  4. 4 elements make up 95% of the body in most organisms OXYGEN CARBON HYDROGEN NITROGEN The same molecules are passed around again and again within the biosphere in ___________________________ BIOGEOCHEMICAL CYCLES

  5. WATER CYCLE= ___________________ HYDROLOGIC CYCLE http://www.urbanrivers.org/water_cycle.html

  6. 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_______________ building blocks of cells photosynthesis http://www.lsbu.ac.uk/water/molecule.htm

  7. WHY IS WATER IMPORTANT? SOLVENT Water is a good _________________ Many molecules dissolve in water so it provides a place for chemical reactions to happen Water doesn’t change temperature easily so it helps with ________________________ TEMPERATURE REGULATION http://www.lsbu.ac.uk/water/molecule.htm

  8. Evaporation • 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. Part one of the water cycle

  9. Transpiration • Do plants sweat? 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.

  10. Condensation • Water vapor in the air gets cold and changes back into liquid, forming clouds.  Part 2 of the Water Cycle

  11. Precipitation 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. 

  12. The Water Cycle Part 2 of the Water Cycle Part 3 of the Water Cycle Part 1 of the Water Cycle

  13. http://www.css.cornell.edu/faculty/hmv1/watrshed/Etrans.htm The evaporation of water from the surface of plant leaves = ________________ TRANSPIRATION The return of water tothe surface in the form of rain, snow, sleet, hail, etc. = ____________________ PRECIPITATION

  14. Image edited from: http://www.cotf.edu/ete/modules/msese/earthsysflr/water.html WATER CYCLE 5. 6. 4. 3. 2. 2. 2. 1. PH ONLINE LINK Put in code: cbp-2033 Choose Start

  15. Recall: • Photosynthesis and cellular respiration are complementary processes

  16. 4 main CARBON reservoirs in BIOSPHERE • In ____________ as CO2 gas • In _______ as dissolved CO2 gas • On _______ in organisms, rocks, soil • __________ as coal & petroleum (fossil fuels) and calcium carbonate in rocks atmosphere ocean land Underground CO2 in atmosphere CO2 in Ocean BIOLOGY; Miller and Levine; Prentice Hall; 2006

  17. Where does CO2 in atmosphere come from? CO2 in atmosphere CO2 in Ocean Volcanic activity • ________________ • ______________ • _________________ • ____________ of dead organisms Human activity (burning fossil fuels) Cellular respiration Decomposition BIOLOGY; Miller and Levine; Prentice Hall; 2006

  18. WHY IS CARBON IMPORTANT? BUILDING BLOCKS Found in all the _______________ of cells: carbohydrates, proteins, nucleic acids, lipids Image by Riedell http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm

  19. WHY IS CARBON IMPORTANT? Carbon in CO2 provides the atoms for __________ production during __________________... the fuel that all living things depend on. GLUCOSE PHOTOSYNTHESIS http://www.science.siu.edu/plant-biology/PLB117/JPEGs%20CD/0076.JPG http://www.biologyclass.net/mitochondria.jpg

  20. CARBON CYCLE CO2 in atmosphere photosynthesis respiration decomposition CO2 in ocean deposition Carbon videoclip (2:34min): http://www.youtube.com/watch?v=jNIQ9KTMimQ&feature=related NASA Carbon (5:39min): http://www.youtube.com/watch?v=HrIr3xDhQ0E BIOLOGY; Miller and Levine; Prentice Hall; 2006

  21. WHY IS NITROGEN IMPORTANT? NITROGEN BASES __________________make DNA and RNA ATP Adenine (nitrogen base) is used in _______ amino acids Makes AMINO part of _________ (proteins) Image by Riedell Image by Riedell http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm

  22. 79% of the atmosphere is made up of NITROGEN gas (N2) BUT we _____ use the nitrogen gas we breathe! The bond in N2 gas is so strong it can only be broken by _______________ _______________ ____________________ CAN’T lightning Volcanic activity few special bacteria Image by Riedell Image by Riedell http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm

  23. Bacteria that live ______________ and in symbiotic relationships with plants called legumes take nitrogen from the atmosphere and turn it into ______________, a form that is usable by plants. THIS PROCESS IS CALLED_________________ in the soil AMMONIA (NH3) NITROGEN FIXATION http://www.slic2.wsu.edu:82/hurlbert/micro101/images/101nodules21.gif

  24. Other bacteria in the soil convert ammonia into ________________ & _________________ which plants can also use. The nitrogen we need for proteins, ATP, and nucleic acids comes from the ___________ ___________ we breathe! NITRATES (NO3- ) NITRITES (NO2-) FOOD WE EAT NOT THE AIR Image from: http://www.utdallas.edu/images/departments/biology/misc/gonzalez-image.jpg and http://www.cibike.org/CartoonEating.gif modified by Riedell

  25. Bacteria that live ______________ also carry out the reverse process ___________ → _____________. THIS PROCESS IS CALLED_________________ in the soil NITRATES & NITRITES NITROGEN GAS DENITRIFICATION

  26. NITROGEN CYCLE Section 3-3 N2 in Atmosphere Atmospheric N fixation Denitrification Uptake by producers Decomposition, excretion Bacterial N fixation Nitrates & nitrites Ammonia BIOLOGY; Miller and Levine; Prentice Hall; 2006

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