Bio 172 Exam 2 Questions and Answers Already Graded A

Bio 172 Exam 2 Questions and Answers Already Graded A What is true about the reaction show below? C6H12O6+6O2 - 6CO2+6H2O+energy O2 is reduced during the reaction Quinone is an electron carrier that shuttles electrons between Complex I and Complex III. What is true about electron transfer between Complex I and Complex III? Quinone gets oxidized by Complex III. Below is the equation that represents Phase 3, the energy producing or payoff phase of glycolysis. Using the equation shown below, evaluate each of the following statements and choose the one statement that is false: 2G3P+2NAD+ + 4ADP+Pi - 2 Pyruvate + 2 NADH + 4 ATP G3P is reduced to pyruvate; G3P is the reducing agent true: -NAD+ has a lower free energy than NADH -NAD+ is reduced to NADH; NAD+ is the oxidizing agent -overall, this reaction has a negative G -G3P is reduced to pyruvate; G3P is the reducing agent Below is the reaction in the last step of glycolysis. What is true? Phosphoenolpyruvate+ADP+Pi - Pyruvate + ATP phosphoenolpyruvate has a higher free energy than pyruvate proton pump the free energy of ATP+ proton pump is higher than the free energy of ADP+ phosphorylated proton pump Which statement is true about ATP or ADP during glycolysis? a total of 4 ATP's are produced during the energy payoff phase of glycolysis for each glucose Which of the following is a product of the energy investment phase of glycolysis? a six carbon molecule that is more unstable than glucose Rank the molecules from lowest to highest with respect to the potential energy they contain CO2, ATP, NADH, acetyl CoA, G3P what is true regarding cellular respiration? The citric acid cycle is aerobic because it is reliant on oxygen to indirectly re-oxidize the NAD+ and FAD, needed to keep the cycle going In which pathways is CO2 either a reactant or a product? pyruvate processing, citric acid cycle, calvin cycle Which of the following is true regarding pyruvate processing? NAD+ is reduced Your mitochondria are exposed to a toxin which destroys the function of the Citric Acid Cycle. Which of the following would you expect to be most immediately affected? reduction of NAD+ and FAD What is true regarding the light reactions of photosynthesis? cytochrome b6f is more electronegative than pheophytin Which of the following is not needed or does not occur as a result of cyclic electron flow in photosynthesis? production of oxygen When we eat plants, the chemical energy that we take in is a direct result of which plant process? the generation of reduced carbon molecules from CO2 What is TRUE as a result of electrons moving down the first electron transport chain, from pheophytin to photosystem I during noncyclic electron flow? protons move from the stroma of the chloroplast to the thylakoid lumen, decreasing the pH in the thylakoid lumen what is true during the light reactions of photosynthesis -O2 is generated -protons move across the thylakoid membrane -NADPH is a product -PS 1 accepts electrons that were originally split from