cell respiration a cell respiration b fermentation compare and contrast p/cr 10100101001010010100...
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Question What is the alternative name for the Krebs cycle?TRANSCRIPT
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Cell respiration A
Cell respiration B Fermentation Compare and
contrast P/CR
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Question 1 - 10
• What is the alternative name for the Krebs cycle?
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Answer 1 – 10
• Critic acid cycle!
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Question 1 - 20
• Describe the difference between aerobic and anaerobic processes
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Answer 1 – 20
• Aerobic- require oxygen• Anaerobic- do not require oxygen
•
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Question 1 - 30
• What are the major stages of cell respiration?
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Answer 1 – 30
• Glycolysis, Krebs cycle, ETC
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Question 1 - 40
• What is Glycolysis? Be sure to state the the final output in detail
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Answer 1 – 40
• Process where glucose is broken down by the addition of ATP (which leaves as ADP) to produce
• 2 NADH, 2 net ATP and 2 pyruvate
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Question 1- 50
• Briefly Describe the 4 steps of ETC
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Answer 1 – 50
1. Electrons removed from NADH and FADH2 and used for energy
2. Hydrogen ions transported 3. ATP produced4. Water formed
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Question 2 - 10
• Which stage of cellular respiration produces the most ATP? Roughly how many are produced?
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Answer 2 – 10
• ETC, about 34- be sure not to count the 2 from glycolysis and 2 from the Krebs cycle in answering this question
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Question 2 - 20
• Name and describe the structure of the organelle involved with cellular respiration.
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Answer 2 – 20
• Mitochondria• Outer membrane, inner membrane, matrix• Inner membrane and matrix are directly part
of respiration
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Question 2 – 30
• In which stage of cellular respiration is CO2 waste produced?
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Answer 2 – 30
• Krebs cycle
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Question 2 - 40
• Which step of the Krebs cycle is considered to be an intermediate step?
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Answer 2 – 40
• Step 2, CoA
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Question 2 - 50
• Briefly describe the steps of the Krebs cycle!
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Answer 2 – 50
1. Pyruvate broken down2. Coenzyme A3. Citric acid formed4. Citric acid broken down5. 5 carbon molecule broken down6. 4 carbon molecule rearranged
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Question 3 - 10
• What causes the burning sensatation in your muscles when you exert yourself?
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Answer 3 – 10
• The build up of lactic acid during fermentation
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Question 3 - 20
Why is fermentation necessary in animal cells like ours?
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Answer 3 – 20
• We cannot store large amounts of oxygen. We need a temporary back up plan to continue to produce at least a little ATP if our cells find themselves in anaerobic conditions where cellular respiration cannot proceed. This back up plan is fermentation
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Question 3 - 30
• What product of glycolysis is turned into C3H6O3? What is C3H6O3?
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Answer 3 – 30
• Pyruvate• Lactic acid
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Question 3 - 40
• Describe how yeast causes bread to rise
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Answer 3 – 40
• Yeast breaks down sugar in the dough through glycolysis and alcoholic fermentation
• The build up of CO2 (a product of alcoholic fermentation) causes the dough to puff up
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Question 3 - 50
• What does fermentation do (detailed description)
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Answer 3 – 50
• Allows glycolysis to continue by removing an electron from NADH to form NAD+ which is needed for glycolysis to pick up the high energy electrons relseased furing the breakdown of glucose
• Does not produce any ATP itself
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Question 4 - 10
• In which organelle does cellular respiration occur? Photosynthesis?
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Answer 4 – 10
• Mitochondria• Chloroplast
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Question 4 - 20
Send someone to the board to write the equations for both photosynthesis and cellular respiration
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Answer 4 – 20
• Photosynthesis: CO2 + H2O C6H12O6 + O2
• Cellular Respiration: C6H12O6 + O2CO2 + H2O
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Question 4 - 30
• Where is the ETC located in photosynthesis and cellular respiration?
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Answer 4 – 30
• P- thylakoid membrane• CR- innermitochondrial membrane
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Question 4 - 40
• Where do the cycle of chemical reactions occur in photosynthesis and cellular respiration (be specific)? What are the cycles called?
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Answer 4 – 40
• P- Calvin cycle, stroma of chloroplast• CR- Krebs cycle, matrix of mitochondria
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Question 4 - 50
• Which steps of the second half of cellular respiration (Electron Transport Chain) are similar to something we see in the light dependent reactions of photosynthesis?
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Answer 4 – 50
– The ETC proteins use energy provided from the electrons that are part of NADH and FADH2 to pump H+ against the concentration gradient and across the innermitochondrial membrane
– The ions will diffuse out allowing for ATP production
– Steps 2 and 3 of ETC– Steps 3 and 6 of light dependent reactions