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Energy Production in Cells: Cellular Respiration and Photosynthesis Comparison

Understand how cells convert glucose to ATP through cellular respiration & prepare oxygen and glucose via photosynthesis. Explore the processes, locations, and significance.

jessamine-bentley
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Energy Production in Cells: Cellular Respiration and Photosynthesis Comparison

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  1. Cellular Respiration (Changing Glucose into ATP)

  2. Photosynthesis Review • Reactants: Carbon Dioxide, Water, Light • Products: Oxygen, Glucose • Reactions: Light Reactions, Dark Reactions • Location: Chloroplast • Who does it?

  3. Glucose has to be changed into ATP so that cells can use it .

  4. CELLULAR RESPIRATION (Happens in all cells) How does this happen?

  5. 1st Step: Glycolysis • Glucose changed into 2 molecules of pyruvic acid and a little ATP • Happens in the cytosol of the cell

  6. 2nd Step: Aerobic Respiration • Changes pyruvic acid into ATP, water, and Carbon Dioxide • Only if oxygen is present • Happens in mitochondria

  7. 2 Stages of Aerobic Respiration • 1. Krebs Cycle • 2. Electron Transport Chain (Makes most ATP)

  8. Alternate 2nd Stage If no oxygen is present, cell does Fermentation

  9. Fermentation No oxygen present Happens in cytosol of cell

  10. Fermentation • 1st type: • Alcoholic Fermentation (In yeast) • Makes ethyl alcohol & Carbon Dioxide • Makes beer, wine, and bread • 2nd Type: • Lactic Acid Fermentation (in humans, bacteria) • Makes Lactic Acid • Makes yogurt, cheese • Makes muscles sore (lactic acid lowers pH of cells)

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