Cyanide binds to and blocks the action of cytochrome oxidase which is the last cytochrome in the electron transfer chain and is required for its normal function. When inhibited by cyanide all processes upstream in the cellular respiration process are inhibited. Given this information, what affect will cyanide poisoning have on human metabolic rate?
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Cyanide binds to and blocks the action of cytochrome oxidase which is the last cytochrome in the electron transfer chain and is required for its normal function. When inhibited by cyanide all processes upstream in the
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- Maximal production of ATP from glucose involves the reactions of glycolysis, the citric acid cycle, and the electron transport chain. Which of these reactions requires O2, and why? Which, in certain organisms or physiological conditions, can proceed in the absence of O2?The citric acid cycle generates NADH and FADH2, which are then used in the process of oxidative phosphorylation to make ATP. If the citric acid cycle (which does not use oxygen) and oxidative phosphorylation are separate processes, as they are, then why is it that the citric acid cycle stops almost immediately when O2 is removed?The citric acid cycle will be most active when the ATP/ADP ratio is high. True or false
- "The oxygen consumed during the oxidation of glucose in animal cells is returned as CO, to the atmosphere" is true or false.The ΔG of the following reaction is –2.8 kcal/mol: acetyl phosphate + ADP ↔ acetate + ATP Is ADP greater than, lesser than, or equal to acetate in its affinity for phosphate? If there were no fermentation when molecular oxygen is unavailable (anaerobic respiration), how would this affect glycolysis? Briefly explain your answer.discuss some similarities and differences between the combustion of glucose and the metabolism of glucose through cellular respiration
- The respiratory quotient (RQ) is the ratio of the Liters of CO2 produced to the Liters of O2 consumed by an individual (CO2 exhaled in liters)/(O2 inhaled in liters). It is used as a measure of basal metabolic rate and can indicate which types of molecules are being used by a person to produce energy. For glucose (C6H12O6), this value is 1 as the equation for the complete oxidation of glucose is: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O For fatty acids that are degraded through beta oxidation and fed into the TCA cycle, the RQ value would be ______ the values for glucose oxidation. Fill in the blank with: a) higher than b) the same as c) lower thanIn the absence of oxygen the cell will perform only glycolysis, and not the rest of respiration. Is this efficient? How much of the energy has been harvested from glucose at this pointIn cellular respiration, carbon dioxide is formed from the oxidation of which of the following?
- The citric acid cycle consumes oxygen Group of answer choices True False Oxidative phosphorylation converts the phosphoryl-transfer potential of ATP into the electron transfer potential of NADH and FADH2 Group of answer choices True False Carbohydrate metabolism is the source of all acetyl CoA that enters the citric acid cycle Group of answer choices True Falsethese are the by-products of aerobic respiration that are considered low-energy molecules.Another problem the evil mad scientist trying to make space humans is encountering relates to the metabolism of the space humans. Because there is no oxygen available in space, the space humans are having difficulty generating enough energy to survive. Why would this be? What other problems might result due to the lack of oxygen? (Think about how metabolism occurs anaerobically).