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What is the overall significance of cellular respiration?

The Carbon Cycle

What is the overall significance of cellular respiration

  • What is the overall significance of cellular respiration?
  • Where does cellular respiration take place in the cell?
  • Can you explain the difference between aerobic respiration, anaerobic respiration, and fermentation?
  • What are the byproducts of each of these pathways?
  • What is an oxidation-reduction (redox) reaction?
  • Can you distinguish between a molecule that has been oxidized and one that has been reduced?
  • Can you distinguish the difference between an oxidizing agent and a reducing agent?
  • Can you describe how molecules such as NAD+ participate in (and transfer energy in) redox reactions. What is an electron transport chain?
  • Can you summarize the reactions of glycolysis, oxidation of pyruvate (to Acetyl Co-A), the citric acid cycle, and the electron transport chain (oxidative phosphorylation)? In other words, can you describe their specific location within the cell, their net reactants, and net products?
  • What is substrate-level phosphorylation of ADP to form ATP?
  • How does this differ from oxidative phosphorylation?
  • Where do each of these types of ATP formation take place within a cell during cellular respiration?
  • What role do NADH and FADH play in the electron transport chain and the chemiosmotic phosphorylation of ATP’s?
  • What is the net yield of ATP per glucose when broken down by a eukaryotic cell aerobically? What is the net yield per glucose when broken down anaerobically (by glycolysis alone)?
  • What is the overall “purpose” of photosynthesis?
  • Where do the reactions of photosynthesis take place?
  • How are pigment proteins involved in the process?
  • What role does the light spectrum play in the process?
  • What is accomplished by the light reactions of photosynthesis (products in, products out)?
  • What is accomplished by the Calvin cycle of photosynthesis (products in, products out)?
  • Why does almost all life depend on this process?
  • In the light reactions, what role do the two photosystems play?
  • What is the advantage to having two photosystems?
  • How do the photosystems differ in how they work and what products they produce?
  • Can you summarize the cyclical set of reactions in the Calvin cycle in C3 (normal) photosynthesis?
  • Where (specifically) do these reactions take place?
  • What is the name of the carbon-fixing enzyme of the Calvin cycle?
  • What is photorespiration and why does it occur?
  • How does photorespiration reduce the efficiency of photosynthesis in C3 plants?
  • How is the carbon-fixing pathway that is found in C4 and CAM plants different from that found in C3 plants? How does the C4 pathway differ from CAM?
  • How do these adaptations help plants reduce photorespiration?
  • Make sure you are able to define and use the vocabulary terms that are found in the Module 7 Vocabulary Quizlet.