Cellular Respiration

1. Autotrophs from photosynthesis and heterotrophs from eating autotrophs and other heterotrophs.
1. Where do autotrophs and heterotrophs get the glucose necessary for cellular respiration?
2. Produced as a waste product of CR
2. Where do autotrophs get the carbon dioxide necessary for the Calvin Cycle of photosynthesis?
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3. Water is vaporized, returns as rain, absorbed by the roots of plants
3. How does the water produced in cellular respiration get to the water splitting enzyme in the light reactions of photosynthesis?
4. Oxygen is the final electron acceptor of the ETC. Without oxygen, the ETC would back up and CR would not be able to continue.
4. In what part of cellular respiration does the oxygen produced in photosynthesis play a role?
5. The products of one are the reactants of the other.
5. Explain how photosynthesis and cellular respiration, both together and individually, represent biochemical pathways.
1. 6 O2 + C6H12O6 + enzymes 6 H2O + 6 CO2 + Energy
1. Write the balanced chemical equation for cellular respiration
1. Chloroplast
1. In which organelle does photosynthesis occur?
2. Aerobic occurs in the mitochondrion
2. In which organelle does cellular respiration occur?
4. In which type of organism, autotrophs or heterotrophs, does cellular respiration occur?
5. Both have cells that need to produce energy for cellular function
5. Explain why both autotrophs and heterotrophs must undergo cellular respiration.
6. From where does the glucose necessary for cellular respiration come?
7. From cell respiration of heterotrophs
7. From where does the carbon dioxide of photosynthesis come?
9. Cristae, the inner membrane
9. In what part of the mitochondrion does the electron transport chain occur?
10. Where does the Kreb’s cycle occur?
11. Where does glycolysis occur?
5. It occurs in the cytoplasm of prokaryotic cells; does not have mitochondria
5. Given one molecule of glucose, explain why prokaryote cells are less efficient than eukaryote cells at energy production.
6. As my cells respire, they produce water as a waster product. I breathe heavily to replace the oxygen needed for this process.
6. Explain why, even on a cold day, if I go for a run, I begin to sweat and pant (breathe heavily).
7. Their body goes into lactic acid fermentation which is inefficient and does not produce ATP for energy.
7. Explain why athletes can sprint for short distances but cannot maintain this pace for long distances.
2. Reactants of both are pyruvate and NADH. See above for products
2. What are the reactants and products of both?
1. LAF occurs in animals and AF occurs in plants and yeasts. The first produces lactic acid and the second produces ethanol and CO2.
1. What is the difference between lactic acid fermentation and alcoholic fermentation?
when there is a lack of oxygen
3. In what conditions in your body will lactic acid fermentation occur?
plants & yeast
4. What type of organisms undergoes alcoholic fermentation?
5. Alcoholic fermentation is responsible for biofuels, fluffy bread, holey cheese, sour cream, and alcoholic beverages.
5. What is a beneficial product we receive from either lactic acid fermentation or alcoholic fermentation?
1. In which organelle does photosynthesis occur?

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