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Biological systems need energy!

Biological systems need energy!. To do “work” Chemical activities Growth Movement Reproduction Repair ? Stored in CHEMICAL BONDS. Chemical Energy…………. Stored in? Food (Plant or Animal) Made by Producers in? Photosynthesis as? Glucose sugar Energy is released ?

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Biological systems need energy!

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  1. Biological systems need energy! • To do “work” • Chemical activities • Growth • Movement • Reproduction • Repair • ? Stored in • CHEMICAL BONDS

  2. Chemical Energy………….. • Stored in? • Food (Plant or Animal) • Made by Producers in? • Photosynthesis as? • Glucose sugar • Energy is released? • Respiration, breaks • the chemical bonds

  3. ATP cell energy Ch.9.1 • High energy molecule • Supplies cell energy • ATP cycles from ADP • by addition of a high energy phosphate • from the release of chemical energy • in respiration

  4. ADP to ATP cycle ADP +P • ADP=di phosphate • ATP= tri phosphate • ATP makes a muscle work High energy ATP -P after cell work ADP in cell

  5. Stored energy in glucose bonds ADP in cell + + Respiration P Forms ATP so cell can do work = Release of food energy

  6. Light energy Ch.9.2 • Primary Energy Source for? • Photosynthesis • Used by • Plants • Chlorophyll

  7. Photosynthesis . . . . • Plants make? • Require? 1. Sunlight 2. Chlorophyll 3. Water roots 4. ? gas

  8. Plant Photosynthesis…….. • Makes Food • Uses • Sunlight • Carbon dioxide • Water • Chlorophyll

  9. Chemical Equation >>>>>> Carbon dioxide + water +energy=food + oxygen (sugar) CO2 + H20 +sun = C6H1206 + O2

  10. Cellular Respiration Ch. 9.3 • BOTH plants & animals breakdown food 1. Releases energy 2. Makes cell energy 3. Reverse of photosynthesis !

  11. Burning: Activated by friction Heat Energy Light Energy Carbon Dioxide Oxygen Respiration: Activated by enzymes Heat Energy ATP cell energy Carbon Dioxide Oxygen Burning versus Respiration

  12. Cellular Respiration………. • Breakdown of Food • Occurs in the Mitochondria of • Plant & Animal Cells • Produces? • ATP cell energy • CO2 gas waste

  13. Respiration Equation >>>>> • Opposite of Photosynthesis food + oxygen = ATP+ CO2 +H20 C6H1206 + O2 = ATP+ CO2 +H20

  14. PHTOSYNTHESIS Make food Give off O2 Use sunlight Use CO2 RESPIRATION Break apart food Use oxygen Make cell energy Give off CO2 Comparison of both ……..

  15. Equation Comparison: 6CO2 + 6H20 + sun = C6H1206 + 6O2 • Photosynthesis • Respiration C6H1206 + 6O2 = ATP+ 6CO2 +6H20

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