The rate of oxidative phosphorylation I. is regulated by the availability of ADP and Pi. II. is reduced when the ratio of [NADH]/[NAD+] is high. III. increases with a higher concentration of reduced cytochrome c IV. is regulated by activity of the ADP-ATP translocator.
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The rate of oxidative phosphorylation
I. is regulated by the availability of ADP and Pi.
II. is reduced when the ratio of [NADH]/[NAD+] is high.
III. increases with a higher concentration of reduced cytochrome c
IV. is regulated by activity of the ADP-ATP translocator.
There are multiple correct answer choices. I think the correct answer is I,III, IV but I am not sure.
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- A. What is substrate level phosphorylation. B. Although oxygen does not participate directly in the citric acid cycle , the cycle only operates when oxygen is present. Why is this so so ? C.describe how hibernating animals and new born babies are able to keep warm without shivering. D. What is the metabolic purpose of hexose monophospate shunt pathway E.hg does G6PD deficient individuals have increase in resistance to malaria?Which of the following statements about the use the NADPH generated from the pentose phosphate pathway is not true? NADPH generated from the pentose phosphate pathway is used for the synthesis of fatty acids. b. NADPH generated from the pentose phosphate pathway and cytoplasmic NADH is metabolically interchangeable. O c. NADPH generated from the pentose phosphate pathway is used for the regeneration of glutathione to its reduced state. O d. NADPH generated from the pentose phosphate pathway is used for lipid synthesis. Clear my choiceCyanide toxicity results from its ability to inhibit cytochrome oxidase c, part of the ETC of cell respiration. What effect(s) might you expect from cyanide poisoning? U a. Intracellular accumulation of NADH. Ob. Rapid depletion of oxygen. Increased amounts of oxidative phosphorylation. Od. Inhibition of PFK would occur. U e. Decreased production of ATP
- ndicate whether each of the following statements is true or false. If false, correct the statement or provide a briefexplanation for why it is false.g. The high potential electrons of NADH enter the respiratory chain at NADH-Q reductase.h. Ubiquinol (QH2) is also the entry point for electrons from NADH of flavoproteins.i. Cytochrome reductase catalyzes the transfer of electrons from cytochrome c to O2.CHOOSE THE CORRECT LETTER 1.What kind of cells often use the glycerol-phosphate shuttle?A.brainB. heartC.liverD. kidney 2.What is the net ATP yield of the complete glycolysis of 5 molecules of glucose?A. 4B. 5C. 10D. 12 3.Which of the following substrates is used in the first oxidation step of the Kreb's cycle to produce NADH and COy?A. isocitrateB. a-ketoglutarateC. citrateD. succinyl-CoA1. Determine the answers of these multiple choices please its "a, b, c". Do not explain it, only determining the word or the answer. A) At the end of glycolysis, most of the energy of glucose undergoing aerobic respiration is found in the molecules: -Lactic acid -Of ATP's -Pyruvic acid -Of reduced NAD -Of PGAL B) The final product or final products of the light reaction during photosynthesis is or are: -PGA and carbon dioxide -Decomposition of ATP and water -ATP and NADPH2 training -Leribulose diphosphate (RDP) -ATP formation and carbon -Dioxide absorption: drugs C) Choose the substance that is produced during glycolysis and that will be sent to the Krebs cycle: -the pyruvate -lactic acid -the PGAL -The NADH -fructose
- In the first stage of glycolysis, the hydroxyl group on C6 of glucose is phosphorylated to form glucose-6-phosphate (G6P). In this reaction, which of the following statements is true? a. O b. d. e. Glucose kinase is used to catalyze the reaction. Hexokinase is used to catalyze the reaction. A molecule of NADH is synthesized. One ATP is synthesized. Fructose kinase is used to catalyze the reaction.ATP levels are high in the liver, NADPH levels are low, but fat biosynthesis needs to happen. What is the function of the pentose phosphate pathway? a. Mode 1 - NADPH and ribose 5-phosphate are being generated b. Mode 2 - ribose 5-phosphate is needed, so only the non-oxidative portion is being used for carbon skeleton rearrangments c. Mode 3 - NADPH is needed, so oxidative portion is operating to make NADPH and non-oxidative portion is operating to regenerate glucose 6-phosphate d. Mode 4 - NADPH and ATP are needed, so oxidative portion makes NADPH, non-oxidative portion does carbon skeleton rearrangements to fuel glycolysis and make ATPSteps in oxidative phosphorylation involves all of the following except 11. a. The phosphorylation energy is supplied by ATP metabolism b. Electron transfer chain moves electron from NADH and FADH2 to O2 c. Phosphorylation of ADP to ATP catalyzed by ATP synthase d. Electron do not flow to oxygen unless ATP is needed 12. List factors that can activate glucokinase for glucose metabolism in the liver 13. What are the functions of macromolecules with examples? Write the general balanced equation that shows the catabolism of glucose (GLYCOSLYSIS) to ATPS, carbon dioxide, and water. Include in the equation the formation of ATP from ADP and phosphate and oxygen utilization. 14. 15. What is post-translational processing of proteins and list 3 things that can happen to the proteins synthesized at this stage:
- a. In the TCA cycle, which of the following combines with acetyl CoA to form a 6-carbon compound? i. oxaloacetate ii. thiamine iii. glucose iv. pyruvate b. The last step in glycolysis is the transfer of phosphoryl group from phosphoenolpyruvate to ADP catalyzed by pyruvate kinase. i. True ii. False1. Choose all the correct answers. Enzyme catalyzing this reaction: COO CO0 но C-H + NAD* CH2 + NADH + H* CH2 лвенный тет CoO COO L-Malate Oxaloacetate A. Belongs to the class of transferases. B. Belongs to the class of oxidoreductases. C. Is a simple enzyme. D. Is a holoenzyme.1. True / False: NADH dehydrogenase is the least electronegative complex of the ETC. 2. True / False: Most of the energy lost during the conversion of one form to another is as light. 3. True / False: The addition of a phosphate group is called phosphorylation. 4. True / False: The ETC pumps protons into the mitochondrial matrix. 5. True / False: FADH₂ transfers its electrons directly to cytochrome c. 6. True / False: FADH₂ is created exclusively during the citric acid cycle. 7. True/False: Alcohol fermentation occurs most commonly in animals and plants. 8. True / False: During fermentation, NAD* is regenerated when NADH is reduced. 9. True / False: The hydrolysis of ATP releases free energy. 10. True / False: Most of the CO₂ produced by cellular respiration is formed during ETC/chemiosmosis.