Which of the following reduces NAD+ to NADH? *photosystem I
*glycolysis *fermentation *oxidative phosphorylation *citric acid
cycle *Calvin cycle
Which of the following reduces NAD+ to NADH? *photosystem I *glycolysis *fermentation *oxidative phosphorylation *citric acid...
Be able to label any and all steps in: glycolysis, the citric acid cycle and oxidative phosphorylation. Including (but not limited to): names of compounds, enzymes (for extra credit where stated), ATP produced, NADH and FADH2 produced, and the role or importance of main molecules. **Note: this is really three questions in one. Therefore, know how to label the sequences in 1. Glycolysis 2. The citric acid cycle and 3. Oxidative phosphorylation .
A) what effect does increasing a cell's NADH/NAD+ ratio have? 1. No effect on citric acid cycle activity 2. decrease in citric acid cycle efficiency 3. decrease in citric acid cycle activity 4. increase in citric acid cycle activity B) Which of the following mechanisms allow ATP synthase complex to release ATP as proton flow occurs? 1. activation 2. conformational coupling 3. chemiosmosis 4. oxidative phosphorylation
QUESTION 25 Throughout glycolysis, the citric acid cycle, and most of oxidative phosphorylation, energy is stored in: oxygen protons o electrons carbohydrates
Which of the following statements describes NAD+?A. NAD+ is oxidized by the action of hydrogenates.B. NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle.C. NAD+ can donate electrons for use in oxidative phosphorylation.D. In the absence of NAD+, glycolysis can still function.E. NAD+ has more chemical energy than NADH.
QUESTION 1 Which of the following processes/pathways CANNOT occur in the absence of O2? Oxidative phosphorylation Substrate level phosphorylation Oxidation of NADH Photosynthesis Fermentation 1 points QUESTION 2 Phosphofructokinase (PFK-1) is one of the most regulated enzymes in metabolism. Which of the following would be expected to be an allosteric inhibitor of PFK-1? Glucose Fructose-6-phosphate Acetyl CoA AMP 1 points QUESTION 3 Which of the following is a reactant of the first reaction of glycolysis? Glucose ADP ATP...
Where do the following occur in a cell? a) Glycolysis b) Citric Acid Cycle c) Oxidative Phosphorylation d) Carbon Fixation
26. Based on our discussion in class, high levels of NADH would likely A. cause pellagra B. stimulate glycolysis C. slow down the movement of molecules through the citric acid cycle D. slow down oxidative phosphorylation E. break down carbohydrates 27. What purpose does fermentation serve? A. It regenerates NAD* from NADH to keep glycolysis going in the absence of oxygen. B. It allows for the production of NADH, which keeps the electron transport chain going. C. It produces an...
Which of the following does NOT require NAD+? O O O Boxidation oxidative deamination glycolysis O transamination O citric acid cycle Submit Request Answer
Oxidative phosphorylation refers to O the electron transport chain coupled to glycolysis O the citric acid cycle coupled to ATP synthesis O beta-oxidation coupled to ATP synthesis O the electron transport chain coupled to ATP synthesis QUESTION 8 Which ATP synthase subunit binds protons from the intermembrane space? OCO O Beta Alpha O Gamma QUESTION 9 Which ATP synthase subunit catalyzes the phosphorylation of ADP? O Alpha Beta O Gamma O C10
We have discussed fermentation as a mechanism for regeneration of NAD for glycolysis under conditions when an ETC is not available for NAD regeneration. Embden-Meyerhof glycolysis converts one NAD to NADH for each molecule of pyruvate produced. Fermentation of pyruvate to propionic acid converts one NADH to NAD for each molecule of pyruvate fermented. Which of the following statements is TRUE of metabolism under conditions that force the use of pyruvate fermentation to propionate? It should be possible to perform...