Alcohol dehydrogenase is the enzyme that converts alcohols to aldehydes or ketones. Explain how methanol poisoning can be treated with ethanol.
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- Another antidote for methanol poisoning is fomepizole, which is an aldehyde dehydrogenase (ADH) inhibitor. Would fomepizole be more or less effective than ethanol? Explain your reasoning.All coenzymes are cofactors, but not all cofactors are coenzymes. Explain this statement.Thioesters, common in biochemistry, are more unstable (energy-rich) than oxygen esters. Explain why this is the case.
- Intravenous injection of KCl could be fatal. Why?All coenzymes are cofactors, but not all cofactors are coenzymes. Explain this statement briefly.Fill in the blanks and explain the relationship between the paired words/phrases a. methotrexate: dihydrofolate reductase; ___________: thymidylate synthase b. __________: aspartate; purine: glycine
- Alcohol dehydrogenase catalyzes the oxidation of an alcohol to the next highest state of oxidation, an aldehyde. How does this partially explain the toxicity of methanol?Carboxylic acids that undergo nucleophilic acyl substitutionreactions are often first converted to thioesters. For example,acetic acid forms thioester with a molecule called coenzyme A,which has a sulfhydryl group What is the leaving group in these reactions?Alcohol dehydrogenase, found in liver cells, converts ethanol into cetaldehyde. What type of protein is alcohol dehydrogenase?
- Lesch nyhan syndrome is due to deficiency of which enzyme ?(a) Explain why obligate anaerobes contain some citric acid cycle enzymes. (b) Why don’t these organisms have a complete citric acid cycle?Each of the following enzymes catalyzes what sort of reaction?citrate decarboxylase (a. citrate decarboxylase) (b. citrate decarboxyoxalate reductase (b)c. transaminase of serine