Cellular Respiration



Cellular Respiration

Chpt. 9

Review Chpt 8:

ATP( structure, ADP, AMP

p. 148 concept check 8.2 #1,2 p 150cc 8.3 #1, p. 155, cc 8.4 1,2, **p 157 cc 8.5

P. 159

#1, 7, 10,

Redox Rxns P. 161-162

Cellular Respiration

▪ Fermentation p. 175

▪ Glycolysis( only when Energy needed; otherwise stored as glycogen or starch

o 10 rxns; 10 enzymes

o Glucose( 2 pyruvate

o P. 165, Fig. 9.8 and P. 166-167

▪ Citric Acid Cycle/ KREBS p. 168-169 all 3 figures

▪ Oxidative Phosphorylation P. 171-172

o Electron transport chain

▪ Electron transport molecules?

o Chemiosmosis

▪ ATP synthase

Phosphofructokinase p. 178

▪ Stimulate-( AMP

▪ Inhibit( ATP, Citrate

Review Chpt. 9

| |[pic] |

| |1 . |

| |      |

| |Which of the following best describes the main purpose of|

| |the combined processes of glycolysis and cellular |

| |respiration? (Concept 9.1[pic]) [Hint] |

| |[pic]  |

| |the breakdown of glucose to carbon dioxide and water |

| | |

| |[pic]  |

| |conserving the energy in glucose and related molecules in|

| |a chemical form that cells can use for work |

| | |

| |[pic]  |

| |catabolism of sugars and related compounds |

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| |producing complex molecules from chemical building blocks|

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| |breaking down ATP, so that ADP and P can be reused |

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| |2 . |

| |      |

| |In the combined processes of glycolysis and cellular |

| |respiration, what is consumed and what is produced? |

| |(Concept 9.1[pic]) [Hint] |

| |[pic]  |

| |Carbon dioxide is consumed, and water is produced. |

| | |

| |[pic]  |

| |Oxygen is consumed, and glucose is produced. |

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| |Water is consumed, and ATP is produced. |

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| |Glucose is consumed, and carbon dioxide is produced. |

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| |ATP is consumed, and oxygen is produced. |

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| |3 . |

| |      |

| |Which of the following describes the process of |

| |glycolysis? (Concept 9.2[pic]) [Hint] |

| |[pic]  |

| |It represents the first steps in the chemical oxidation |

| |of glucose by the cell. |

| | |

| |[pic]  |

| |It produces both ATP and NADH. |

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| |[pic]  |

| |It converts one glucose molecule to two molecules of |

| |pyruvate and carbon dioxide. |

| | |

| |[pic]  |

| |The first two answers are correct. |

| | |

| |[pic]  |

| |The first three answers are correct. |

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| | |

| |5 . |

| |      |

| |The electrons stripped from glucose in cellular |

| |respiration end up in which compound? (Concept 9.4[pic]) |

| |[Hint] |

| |[pic]  |

| |ATP |

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| |[pic]  |

| |NADH |

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| |oxygen |

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| |carbon dioxide |

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| |water |

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| |7 . |

| |      |

| |Which statement about the citric acid cycle is incorrect?|

| |(Concept 9.3[pic]) [Hint] |

| |[pic]  |

| |The citric acid cycle oxidizes the products of glycolysis|

| |to carbon dioxide. |

| | |

| |[pic]  |

| |The citric acid cycle produces most of the NADH that is |

| |subsequently used by the electron transport chain. |

| | |

| |[pic]  |

| |The oxidation of compounds by the citric acid cycle |

| |requires molecular oxygen. |

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| |[pic]  |

| |The last reaction in the citric acid cycle produces a |

| |product that is a substrate for the first reaction of the|

| |citric acid cycle. |

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| |[pic]  |

| |The citric acid cycle depends on the availability of |

| |NAD+, which is a product of the electron transport chain.|

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| |9 . |

| |      |

| |Which of the following statements is correct about the |

| |chemiosmotic synthesis of ATP? (Concept 9.4[pic]) [Hint] |

| |[pic]  |

| |The energy for production of ATP from ADP comes directly |

| |from a gradient of electrons across the inner |

| |mitochondrial membrane. |

| | |

| |[pic]  |

| |Oxygen participates directly in the reaction that makes |

| |ATP from ADP and P. |

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| |[pic]  |

| |The chemiosmotic synthesis of ATP requires that the |

| |electron transport in the inner mitochondrial membrane be|

| |coupled to proton transport across the same membrane. |

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| |[pic]  |

| |The first two choices are correct. |

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| |[pic]  |

| |The first three choices are correct. |

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| |10 . |

| |      |

| |In most cells, not all of the carbon that enters |

| |glycolysis is converted to carbon dioxide by cellular |

| |respiration. What happens to this carbon that does not |

| |end up as CO2? (Concept 9.6[pic]) [Hint] |

| |[pic]  |

| |It is used to convert ADP to ATP via chemiosmosis. |

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| |[pic]  |

| |It is converted to heat. |

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| |[pic]  |

| |The carbon atoms are removed from these processes to |

| |serve as building blocks for other complex molecules. |

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| |It is used to make ATP. |

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| |It is used to make NADH. |

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| |Bottom of Form |

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