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Cellular Respiration and Photosynthesis

Cellular Respiration and Photosynthesis. Cellular Respiration : The breakdown of food (glucose) for energy Takes place in all organisms: a. Plants b. Animals c. Bacteria d. One-celled paramecium and amoeba. A process that occurs continuously in all organisms.

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Cellular Respiration and Photosynthesis

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  1. Cellular Respiration and Photosynthesis

  2. Cellular Respiration: The breakdown of food (glucose) for energy Takes place in all organisms: a. Plants b. Animals c. Bacteria d. One-celled paramecium and amoeba. A process that occurs continuously in all organisms. Cellular Respiration

  3. Useable Energy • ATP: energy used at the cellular level • mitosis 2. protein production 3. active transport ATP is also used by the body 4. movement 5. breathing 6. thinking…etc…

  4. Useable Energy • ATP is made in two ways: • Aerobic Cellular Respiration: if oxygen is used • Anaerobic Cellular Respiration: if oxygen is not used

  5. ATP • Also known as Adenosine Triphosphate. It contains: • Adenine - contains nitrogen • 2. A sugar called ribose • 3. 3 phosphates with 2 high energy phosphate bonds

  6. Recycled ATP Add • RemovingA Phosphate Group From ATP Releases Energy & forms ADP • AddingA Phosphate Group To ADP stores Energy in ATP Remove ATP ADP + P

  7. AEROBIC CELLULAR RESPIRATION • Takes place in the mitochondria of plants and animals • Oxygen is necessary • SUMMARY EQUATION: C6H12O6 + O12 6H2O + 6CO2 + 36 ATP glucose + oxygen water + carbon dioxide + 36 ATP

  8. 3 Steps - AEROBIC RESPIRATION • Glycolysis • Kreb’s Cycle • Electron Transport Chain

  9. Aerobic respiration Step 1 is called Glycolysis Glucose Glycolysis in the Cytoplasm Pyruvate Pyruvate Kreb’s cycle Electron Transport Chain

  10. ANAEROBIC RESPIRATION • FERMENTATION: - also known as anaerobic respiration • Carried out where oxygen is lacking • Still uses glucose as fuel • Two types: • Lactic Acid Fermentation: • Makes 2 ATP • Associated with muscle fatigue • Ethyl Alcohol Fermentation: • Makes 2 ATP • Important to the brewing and baking industries

  11. ANAEROBIC RESPIRATIONvs. AEROBIC RESPIRATION Glucose Glucose Glycolysis in the cytoplasm Glycolysis in the cytoplasm pyruvate pyruvate pyruvate pyruvate Kreb’s Cycle Electron Transport Chain

  12. ANAEROBIC RESPIRATIONvs. AEROBIC RESPIRATION Pyruvate Kreb’s Cycle

  13. Photosynthesis • Photosynthesis: process where plants use sunlight to make (glucose) • The energy for life comes from the Sun

  14. Photosynthesis • SUMMARY EQUATION: 6CO2 + 6H2O +  C6H12O6 + 6O2 Carbon dioxide + water + sunlight  glucose + oxygen

  15. Photosynthesis - starts with light

  16. Photosynthesis • Chloroplasts: organelles that carry on photosynthesis Follow the sun’s path. 1. Sun’s rays hits a leaf 2. Enters into a plant cell 3. Enters into a chloroplast 4. Enters into thylakoid membrane (where photosynthesis takes place)

  17. Where in the Chloroplasts does Photosynthesis occur? Thylakoid membrane

  18. They need one another (glucose)

  19. Also during Photosynthesis Photolysis - the process where sunlight splits water this. H2O + sunlight H + O + electrons The Oxygen from photolysis is the air we breathe

  20. Respiration and Photosynthesis Mitochondria Chloroplast Sunlight, CO2 and H2O O2 and C6H12O6 Energy (ATP) Food (C6H12O6) Animals and Plants Plants Only during sunlight All the time (24/7)

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