Pyruvate dehydrogenase - Study guides, Class notes & Summaries

Which pair of enzymes listed below is unique to gluconeogensis? A. Pyruvate kinase and pyruvate carboxylase B. Phosphoenolpyruvate carboxykinase and pyruvate carboxylase C. Fructose bisphosphatase and phosphofructokinase D. Pyruvate dehydrogenase and glucose 6-phosphataseAnswer - B. Phosphoenolpyruvate carboxykinase and pyruvate carboxylase Which 2 polysaccharides contain the same types of bonds? A. Cellulose and amylose B. Amylopectin and glycogen C. Glycogen and cellulose D. Amylo...

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - Answer-The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

AP Biology MCQ Practice Exam #1 (Answered 100% Correctly) 2024 Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best expalins how the properties of water contribute to this physiological process? The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas. A student placed a semipermeable membrane inside a U-shaped channel with two chambers. Membrane permits...

PDH BioChem Test Term 2 || With Complete Solutions (100% Accurate) PDH BioChem Test Term 2 || With Complete Solutions (100% Accurate) Which of the following is as an activator of pyruvate dehydrogenase? A. Acetyl-CoA B. ATP C. GTP D. NADH E. NAD+ - ANSWER - E. NAD+ (Select any that apply)Which of the following is a allosteric inhibitor of the pyruvate dehydrogenase complex (PDH)? A. ATP B. NADH C. GTP D. Acetyl-CoA - ANSWER - A. ATP C. GTP Which of the following vitamins ...

Which oxidation reaction requires the coenzyme FAD because it involves oxidation of a carbon-carbon single bond to a double bond? correct answer: oxidation of succinate to fumarate Pyruvate dehydrogenase kinase will facilitate which of the following reactions? correct answer: The pyruvate dehydrogenase kinase will phosphorylate and inactivate the pyruvate dehydrogenase complex. Explanation: When the PDC is phosphorylated by pyruvate dehydrogenase kinase, the PDC will become inactive. ...

How do catalysts and inhibitors affect reaction rates? How is ∆G affected by enzymes? correct answers catalysts increase reaction rates; inhibitors decrease them. ∆G is not affected by enzymes Name 3 ways to determine if something has been oxidized or reduced. correct answers oxidation= gain of oxygen, loss of hydrogen, loss of electrons reduction=loss of oxygen, gain of hydrogen, gain of electrons Name cellular location and end products per glucose for the following: glycolysis, pyru...

BIO 441A EXAM 3 STUDY GUIDE WITH COMPLETE SOLUTION. LECTURE ONE - METABOLISM INTRODUCTION ● Autotrophs synthesize all their own cellular constituents from simple molecules ● Heterotrophs obtain energy through oxidation of organic compounds and therefore rely on autotrophs ● Metabolism involves many reactions such as ○ Glycolysis/gluconeogenesis ○ The citric acid cycle ○ Oxidative phosphorylation ● Catabolism is the degradation of biomolecules ○ Energy rich nutrients are...

UNE Biochem 1005 Unit 2 exam questions & answers 2024 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? - ANSWER-The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? - ANSWER-a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? - ANSWER-a. cAMP ...

WGU C785 Biochemistry Final Exam Latest 2022. Which of the following enzymes is part of both the TCA cycle and the electron transport chain? ATP synthase (Complex I) NADH oxidoreductatase Cytochrome c Succinate dehydrogenase (Complex II) – Succinate dehydrogenase ATP is used to carry energy within the cell. The majority of energy in ATP is stored within which of the following bonds indicated on the image below? 3 1 2 4 - 1 In the case of a deficiency in phenylalanine hydroxylase w...

PDH Med Test Exam 3 – With Questions & Answers (100% Accurate) PDH Med Test Exam 3 – With Questions & Answers (100% Accurate) Which of the following is as an activator of pyruvate dehydrogenase? A. Acetyl-CoA B. ATP C. GTP D. NADH E. NAD+ - ANSWER - E. NAD+ True or False: PDH is active when it is phosphorylated. - ANSWER - False Which of the following is a product inhibitor of the pyruvate dehydrogenase complex? SELECT ALL THAT APPLY A. ATP B. NADH C. GTP D. Acetyl-CoA - A...