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Review of Biogeochemical Cycles, Photosynthesis, and Cellular Respiration

Join us for a review of the carbon and nitrogen cycles, photosynthesis, and cellular respiration. Learn about the importance of a healthy diet and the role of proteins. Engage in interactive learning with a Tic-Tac-Toe game.

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Review of Biogeochemical Cycles, Photosynthesis, and Cellular Respiration

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  1. To be successful today, YOU need: pen/pencil, Do Now half sheet, Notes sheet YOU have 3 minutes to get your materials and find your seat! EXPECTATIONS for Do Now: Sitting in YOUR assigned seat… SILENTLY and INDEPENDENTLY… COMPLETE your Do Now… We have 8 days to the EOG! It’s on Friday, May 29th!

  2. What YOU can expect from me today... • DO NOW, Review • Guided Notes → -Carbon and Nitrogen Cycles -Photosynthesis and Cellular Respiration • Tic-Tac-Toe What I am expecting of YOU: • SILENT voices when I am talking • YOUR focus • Engagement - this is the last week we have to review!

  3. Biogeochemical Cycles - CARBON Carbon is the basis of lifeon earth found in rocks, oceans, atmosphere, and living things CO2 in atmosphere → used to make food by plants Humans and other animals eat plants → carbon now in our cells Plants and animals die → carbon returned to earth and atmosphere

  4. Biogeochemical Cycles - NITROGEN Nitrogen is needed to make proteins in living things Bacteria is ESSENTIAL to all steps Bacteria take nitrogen from atmosphere and make it useable for plants Animals eat plants Animals and plants die Bacteria return the nitrogen to the earth

  5. Photosynthesis Plants use the energy from sunlight to make glucose. The reactants of photosynthesis are sunlight, carbon dioxide, and water. The products of photosynthesis are oxygen and glucose. The balanced chemical equation: Sunlight + 6 CO2 + 6 H2O → 6 O2 + C6H12O6

  6. Cellular Respiration Breaks down glucose to release Energy/ATP The reactants of cellular respiration are oxygen and glucose The products of cellular respiration are carbon dioxide, water, and ATP. The balanced chemical equation: 6 O2 + C6H12O6 → 6 CO2 + 6 H2O + ATP

  7. Human Health • The three molecules that serve as food for the cell are proteins, carbohydrates, and lipids. • Food energy is measured in calories. • If one consumes more calories than the body uses, then they will gain weight.

  8. Human Health • A person who burns calories at a fast rate is said to have a high metabolism. • Basal metabolic rate is the minimum number of calories that a person needs to maintain bodily functions while at rest. • The digestion of food provides the body with the necessary reactants to perform cellular respiration.

  9. Tic-Tac-Toe • Determine who is X and who is O • I say definition/question 2 times...only...YOU talk, YOU miss it, YOU lose • YOU or partner finds the right answer first wins • YOU or partner that makes tic-tac-toe first wins! EXPECTATIONS • Voices = whisper voice • Remain seated • 100% on task

  10. Exit Ticket 1) Why is a healthy diet important? • A It maintains a constant body temperature. • B It prevents damage to internal organs. • C It makes oxygen for all the cells in the body. • D It supplies the body’s needs for growth and energy. 2) Why is protein an important part of a healthy diet? • A It is needed to change glucose to energy. • B It is needed to store nutrients. • C It is needed to repair tissue. • D It is needed to produce water.

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