If you have high NADH/NAD ratio, which pathway is expected to be reduced/blocked most? Explain with...
If you have high NADH/NAD ratio, which pathway is expected to be reduced/blocked most? Explain with reasons
A. Glycolysis
B. Gluconeogenesis
C. TCA cycle
D. all of the above
E. none of the above
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If you have high NADH/NAD ratio, which pathway is expected to be
reduced/blocked most? Explain with...
26. Based on our discussion in class, high levels of NADH would likely A. cause pellagra...
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...
NAD+ describes choice
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.
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat...
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat diets are not necessarily the best for all humans? Individual humans have varying metabolisms and set points" When we eat less that - 20% of our calories from fat, we make fat from carbohydrates anyway We synthesize most of the cholesterol we use in our bodies regardless of diet Promoting low or no-fat diets in the past has caused many humans to over-consulte carbohydrates,...
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C....
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C. when there is a deficiency of BOTH pyruvate and oxygen D. for the regeneration of NADH so that hydrolysis of ATP can continue to fuel the glycolysis pathway Explain how gluconeogenesis differs from gtycolysis 21 Gluconeogenesis is simply the reverse of all 10 steps...
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which...
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which cofactor is more commonly used in catabolic pathways and which one is in anabolic pathways? What do you expect the intracellular ratios of NAD+/NADH and NADP+/NADPH to be high or low under homeostasis? Explain your answers. Explain the benefits of the Q cycle comparing to direct transfer of electrons from QH2 to two cytochrome c Distinguish substrate-level phosphorylation and oxidative phosphorylation. Provide specific examples...
2. What would happen to each of the following if reduced the supply of glucose to...
2. What would happen to each of the following if reduced the supply of glucose to cells by 50%? You may assume that the cell will NOT switch to an alternative energy source. Briefly explain why for each. A. The level of glycolysis activity. B. The level of Krebs Cycle activity. C. The level of activity in the electron transport chain in the mitochondria. D. The size of the proton gradient across the inner mitochondrial membrane. E. The rate of...
URGENT I NEED HELP AND I HAVE A DEADLINE. PLEASE AND THANK YOU. 1. Which kind...
URGENT I NEED HELP AND I HAVE A DEADLINE. PLEASE AND THANK YOU. 1. Which kind of pathway describes glycolysis best? a. catabolic and synthetic b. aerobic and catabolic c. glycolytic and aerobic d. anaerobic and catabolic 2. which reaction occurs most often during aerobic cellular respiration? a. condensation b. phosphorylation c. redox d. hydrolysis 3. What is the function of oxygen in oxidative phosphorylation? a. to hydrolyze carbohydrates b. to accept electrons from the reduction of NADP c. to...
A) what effect does increasing a cell's NADH/NAD+ ratio have? 1. No effect on citric acid...
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
can you check my answers 1. Which of the following steps or processes in aerobic respiration...
can
you check my answers
1. Which of the following steps or processes in aerobic respiration DIRECTLY consume molecular oxygen (O2)? a. Glycolysis. b. Oxidative decarboxylation of pyruvate. c. The citric acid cycle. d. Oxidative phosphorylation Beta-oxidation 2- Gluconeogenesis is a[n) pathway a condensation. b. catabolic (c) anabolic d. amphibolic e. photosynthetic 3. Because it is a degradative pathway that also generates biosynthetic precursors, the citric acid cycle is an) pathway. a. condensation 6 catabolic c. anabolic d. amphibolic e....
As the next microbiology genius, you are given a rare chance of observing live ETC performed...
As the next microbiology genius, you are given a rare chance of observing live ETC performed by S. marcescens on a fancy microscope! While the process is going on, you see that an electron passed from the Fe/S protein (Complex 1) to Quinone. What would quinol reduce next? FADH2 Complex 2 Cytochrome or Fe/S (Complex 3) Sulfate None of the above 1. Half reaction with the most negative reduction potential. There may be one or more correct answers. Glyoxylate Cycle Quinone...
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...
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat diets are not necessarily the best for all humans? Individual humans have varying metabolisms and set points" When we eat less that - 20% of our calories from fat, we make fat from carbohydrates anyway We synthesize most of the cholesterol we use in our bodies regardless of diet Promoting low or no-fat diets in the past has caused many humans to over-consulte carbohydrates,...
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C. when there is a deficiency of BOTH pyruvate and oxygen D. for the regeneration of NADH so that hydrolysis of ATP can continue to fuel the glycolysis pathway Explain how gluconeogenesis differs from gtycolysis 21 Gluconeogenesis is simply the reverse of all 10 steps...
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which cofactor is more commonly used in catabolic pathways and which one is in anabolic pathways? What do you expect the intracellular ratios of NAD+/NADH and NADP+/NADPH to be high or low under homeostasis? Explain your answers. Explain the benefits of the Q cycle comparing to direct transfer of electrons from QH2 to two cytochrome c Distinguish substrate-level phosphorylation and oxidative phosphorylation. Provide specific examples...
2. What would happen to each of the following if reduced the supply of glucose to cells by 50%? You may assume that the cell will NOT switch to an alternative energy source. Briefly explain why for each. A. The level of glycolysis activity. B. The level of Krebs Cycle activity. C. The level of activity in the electron transport chain in the mitochondria. D. The size of the proton gradient across the inner mitochondrial membrane. E. The rate of...
can
you check my answers
1. Which of the following steps or processes in aerobic respiration DIRECTLY consume molecular oxygen (O2)? a. Glycolysis. b. Oxidative decarboxylation of pyruvate. c. The citric acid cycle. d. Oxidative phosphorylation Beta-oxidation 2- Gluconeogenesis is a[n) pathway a condensation. b. catabolic (c) anabolic d. amphibolic e. photosynthetic 3. Because it is a degradative pathway that also generates biosynthetic precursors, the citric acid cycle is an) pathway. a. condensation 6 catabolic c. anabolic d. amphibolic e....
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