Kinetics two Study guides, Class notes & Summaries

Enzymes that can bind only one substrate and catalyze one reaction exhibit which type of binding specificity? correct answer: Absolute binding The rate of an enzymatic reaction will ___________________ for every 10 degrees C temperature increase until the enzyme denatures. correct answer: Double All of the following conditions may result in a rise in CKBB levels except. a. Child birth b Spinal chord injury c. Myocardial infarction d. Brain tumor correct answer: c. Myocardial infarct...

BCH 400: Exam Questions & Answers 2023/2024 Enzyme cofactors that bind covalently at the active site of an enzyme are referred to as _________. - ANSWER-prosthetic groups. Which of the following kinetic parameters best describes how well suited a specific compound functions as a substrate for a particular enzyme? - ANSWER-kcat/Km Which of the following is characteristic of an enzyme catalyst? - ANSWER-It positions reactants in the correct orientation. It lowers the activation energy ba...

UNE Biochem 1005 Final Study Set Questions With Complete Solutions. Which of the following best describes the structure of heme? -a nicotinamide structure that is readily oxidized -a negatively charged phosphate group -a planar porphyrin ring that binds iron -an n-link glycosylation A planar porphyrin ring that binds iron Covalent catalysis is used by many enzymes to cleave peptide bonds. Which of the following amino acids would not facilitate this type of catalysis? -valine -cysteine...

UNE Biochemistry Midterm Exam Questions And Answers Verified 100% Correct!! How do most enzymes reduce the activation energy needed to move a reaction forward? Providing an active site most complementary the transition state An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent catalysis. Which of the following is likely to result as a consequence of this mutation? The enzyme will not be able to form the transition state complex Hemoglobin has the abili...

HESI Nursing Entrance Exam Study Guide Review Questions With Answers 2024/2025: Math, Vocabulary, Anatomy and Physiology, Reading Comprehension. Select the word or phrase that will identify the correct meaning of the underlined word. Progeny is a term used to describe a person’s A. creditors B. offspring C. hereditary disease D. health status 2. Select the meaning of the underlined word in the sentence, The proliferation of resistant bacteria has alarmed medical professionals. A....

UNE Biochemistry Midterm Exam Questions And Answers Verified 100% Correct!! How do most enzymes reduce the activation energy needed to move a reaction forward? Providing an active site most complementary the transition state An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent catalysis. Which of the following is likely to result as a consequence of this mutation? The enzyme will not be able to form the transition state complex Hemoglobin has the abili...

Enzyme Kinetics and Km - correct answer-The reaction catalysed by an enzyme uses exactly the same reactants and produces exactly the same products as the uncatalysed reaction. Like other catalysts, enzymes do not alter the position of equilibrium between substrates and products. Enzyme-catalysed reactions display saturation kinetics: For a given enzyme concentration and for relatively low substrate concentrations, the reaction rate increases linearly with substrate concentration; the enzym...

The absolute refractory period occurs because _______ channels cannot be opened, and the relative refractory period occurs because _______. - voltage-gated Na+; voltage-gated K+ channels remain open Dendritic spines serve to - increase the surface area of the dendrite Many ion channels are not normally open but must be gated or opened by some event. Which of the following is NOT an example of an event that typically results in opening/closing an ion channel? - Enzymatic reactions Neural...

Katzung & Trevor's Pharmacology: Examination and Board Review INTRODUCTION 1. A 3-year-old is brought to the emergency department having just ingested a large overdose of tolbutamide, an oral antidiabetic drug. Tolbutamide is a weak acid with a pKa of 5.3. It is capable of entering most tissues, including the brain. On physical examination, the heart rate is 100/min, blood pressure 90/50 mm Hg, and respiratory rate 20/min. Which of the following statements about this case of tolb...

UNE Biochemistry Midterm Exam Questions And Answers Verified 100% Correct!! How do most enzymes reduce the activation energy needed to move a reaction forward? Providing an active site most complementary the transition state An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent catalysis. Which of the following is likely to result as a consequence of this mutation? The enzyme will not be able to form the transition state complex Hemoglobin has the abili...