The word "exergonic" refers to which of the following in metabolism?anabolic pathways for the synthesis of biological molecules from simplerpathways that use chemical energy of ATP to form new covalent bondsbiochemical pathways that produce chemical energy in the form of the high-a)energy bonds of ATP moleculesb)c)precursorsbiosynthetic processes that uize NADPH as a source of high-energyhydrogens and electronssame as endergonicd)e)

All cells function as biochemical factories. Within living cell, biomolecules are constantly being…

Answered: pathways that use chemical energy of…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Set-up: A cell is able to extract energy from the molecule glucose after it breaks it's C-C and C-H bonds and replaces them with C=O and O-H bonds in CO2 and H20 in order to power unfavorable reactions. Questions: In a few brief sentences describe why cells can gain energy from this process. A successful answer should include the following: 1. How the action of breaking bonds relates to energy 2. How forming bonds relates to energy 3. Why some of these bonds store more energy to others
Arsenate can mimic inorganic phosphate in enzyme reactions. Which step in glycoylsis has the potential to have the asenate ion incorporated instead of a phoshpate? Frc-6-P --> Frc -1.6-BP GAP - 1,3-BPG -> 1,3-BPG --> 3-PG Gluc --> Glc-6-P
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Part D Cofactors and coenzymes act to ▸ View Available Hint(s) O inhibit the binding of the substrate Ⓒblock the enzyme from binding its substrate O assist enzymes with their activity O increase the activation energy of binding a substrate Submit
– Why are metabolic pathways so similar in many organisms?
What is the function of Histidine as part of the catalytic triad? O The alcohol group of histidine makes a nucleophilic attack on a peptide C=O bond. O The imidazole group acts as a general base and extracts a proton from serine activating it to attack the substrate O The imidazole group acts as a general base and extracts a proton from aspartate activating it to attack the substrate O The imidazole group acts as a general base and extracts a proton from aspartate allowing it to activate serine by transferring a proton
Referring to the diagram above, where does pathway "A" occur? Where does pathway "B" occur? Remember to include BOTH prokaryotes and eukaryotes in your answer.
nisms reguiale Part A Covalent modification O The product of a series of reactions acts as an inhibitor for an earlior reaction. O Hormones control the synthesis of enzymes A regulator binds to the enzyme at a site other than the active site. This binding changes the shape of the enzyme and alters the catalytic ability of the enzyme. An inhibitor binds reversibly to the enzymesubstrate complex, blocking the binding of the second substrate to the active site The activity of an enzyme is influenced by the addition or removal of a group that is covalently bonded to the enzyme. O An inhibilor forms covalent bonds to the active site, permanently blocking it Submit Reuest Answet P Pearson
Explain 4 complex within the prodcution of ATP Provide examples.
Many enzymes help in cellular respiration. Using the figure to the right, explain the difference between this reaction 1. Enzyme Action with and without an enzyme. You must use the following terms in your answer, active site, induced fit, substrate and activation Without enzyme Activation energy. energy without enzyme With enzyme Activation energy with enzyme Reactants: Overall energy released during reaction Glucose + 0, Products: co, + H,0 Energy released pajddns kbaug
A dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? – for this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of? Keep the answer between 2-3 sentences
Which of the following best describes the principle demonstrated in the figure below? CH.OH H HO OH H A B Formation of a sucrose molecule from glucose and fructose с H/OH D OH CH₂OH HOCH. O H H HOH HO/CH.OH HO OH energy H OH H H₂ OH The production of biomolecules involves a hydrolysis reaction. Water is a fundamental by-product of all hydrolysis reactions. HOCH, O Н The production of blomolecules involves dehydration synthesis reactions. Sucrose molecules are the only biomolecules that store energy. H HO/CH.OH OH Н +H_O

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