What does it require for the necessary reactions to occur if there is the absence of enzymes? choices: higher temp, larger cells, smaller atoms, larger proteins
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What does it require for the necessary reactions to occur if there is the absence of enzymes?
choices: higher temp, larger cells, smaller atoms, larger proteins
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- Two substrates (A and B) are used to produce a certain biological product in an enzyme- catalyzed reaction. It is found that both substrates must bind to the enzyme, first Substrate A, then Substrate B before the product is produced. What kind of kinetic mechanism is described? Linear Reaction Ordered Sequential Reaction Random Sequential Reaction Ping Pong ReactionAnother of the six enzyme classes is which of the following? enzymes catalyze. These classes include the transferases, isomerases, and ligases. All enzymes can be categorized in one of six major classes based on the reactions the proteases kinases hydrolases phosphatases endonucleases An important factor that influences the rate of a biochemical reaction is the temperature. Raising the temperature of a biochemical reaction has which effect upon the kinetics of the reaction? a) b) c) d) e) increases the free energy of the reactants increases the free energy of the transition state decreases the free energy of the reactants decreases the free energy of the transition state decreases the free energy of the productsChoose the best answer The active site of an enzyme is the place where the following happens: a)The enzyme-substrate complex forms and the reaction occurs at the active site. b)The enzyme substrate complex forms here. c)The catalytic reaction happens here. d)Allosteric regulation of enzyme rate occurs here. e)All of these are correct.
- Which of the following affects the rate of enzyme driven reaction? rate constant air pressure concentration of enzyme concentration of substrate light intensity pH temperaturewhy it is critical for enzymes to speed up reaction?Question 4 The main function of catalase is to break bonds between amino acids in proteins and aid in digestion break bonds between monosaccharides in starch and aid in digestion break down hydrogen peroxide into oxygen and water cause browning of fruits and vegetables when they are cut or damaged Question 5 What happens to an enzyme when it is denatured? Its 3D shape changes and it can no longer catalyze the reaction. It modifies the shape of the active site and increases the rate of reaction under optimal conditions. Its 3D shape and all levels of its structure are disrupted, so it can no longer catalyze the reaction. O Its primary structure is disrupted and the enzyme breaks down, making it unable to catalyze the reaction. 1 pts 0.75 pts
- Analyze the reaction below and identify the major class of enzyme that catalyzes the the given reaction:Which enzyme would have the greatest catalytic efficiency? a) Km 20 nM; kcat 50 s-1 b) Km 0.04 uM; kcat 50 s-1 c) Km 10 nM; kcat 5 s-1 d) Km 40 nM; kcat 25 s-1An enzyme facilitate catalysis by formation of ester bond with an alcoholic substrate. Which amino acid residues can facilitate such mechanism of catalysis? Select the correct response: Cys and Met Lys and Arg Ser and Tyr Glu and Asp
- Please handraw this graph with all the necessary detailed information: Imagine that I text enzyme rate for four different temperatures: 10 degrees celsius, 20 degrees celsisus, 30 degree celsius, and 40 degree celsius, in separate tubes. The enzyme appears to work faster as temperature increases, but completely ceases activity at 40 degrees celcius. Sketch a graph to show this outcome, but here you will graph product formation (nmoles/mL) vs. time (minutes). The graph should be 4 lines and HANDDRAWN. Include a legend if necessary. You do not need precise quantitivate values, but most show the correct trends on the graph.Which of the following statements is false regarding an enzyme's ability to catalyse a reaction? an enzyme provides a reaction surface and a hydrophilic environment for the reaction to take place an enzyme binds reactants such that they are positioned correctly and can attain their transition-state configurations an enzyme allows the reaction to go through a more stable transition state than would normally be the case an enzyme can weaken bonds in reactants through the binding processchoices for first blank (protonater,deprotonated) 2nd blank (higher,lower,same) 3rd blank (10,50,90,100) 4th blank (allowed from, excluded in)
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