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The student is expected to: 4B investigate and explain cellular processes, including

Dive into the cellular processes of energy conversion through cellular respiration and photosynthesis. Understand the role of mitochondria, ATP production, and molecule transport. Compare reactants and products, exploring the interconnectedness of these vital processes.

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The student is expected to: 4B investigate and explain cellular processes, including

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  1. The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis of new molecules and 9Bcompare the reactants and products of photosynthesis and cellular respiration in terms of energy and matter

  2. KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

  3. mitochondrion animal cell Cellular respiration makes ATP by breaking down sugars. • Cellular respiration is aerobic, or requires oxygen. • Aerobic stages take place in mitochondria.

  4. Glycolysis must take place first. • anaerobic process (does not require oxygen) • takes place in cytoplasm • splits glucose into two three-carbon molecules • produces two ATP molecules

  5. 1 ATP mitochondrion matrix (area enclosed by inner membrane) and 6CO 2 energy 2 3 energy from glycolysis ATP inner membrane and and 6H O 6O 2 2 4 Cellular respiration is like a mirror image of photosynthesis. • The Krebs cycle transfers energy to an electron transport chain. • takes place inmitochondrial matrix • breaks down three-carbonmolecules from glycolysis Krebs Cycle • makes a small amount of ATP • releases carbon dioxide • transfers energy-carrying molecules

  6. 1 ATP mitochondrion matrix (area enclosed by inner membrane) and 6CO 2 energy 2 Electron Transport 3 energy from glycolysis ATP inner membrane and and 6H O 6O 2 2 4 • The electron transport chain produces a large amount of ATP. • takes place in inner membrane • energy transferred to electron transport chain • oxygen enters process • ATP produced • water released as awaste product

  7. The equation for the overall process is: C6H12O6 + 6O2  6CO2 + 6H2O • The reactants in photosynthesis are the same as the products of cellular respiration.

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