Biology: Science for Life with Physiology (5th Edition)
5th Edition
ISBN: 9780321922212
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 4, Problem 6LTB
Summary Introduction
Introduction:
Activation energy is the minimum amount of energy which is required to start a
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Chapter 4 Solutions
Biology: Science for Life with Physiology (5th Edition)
Ch. 4 - Define the term metabolism.Ch. 4 - What is meant by the term induced fit?Ch. 4 - What are the reactants and products of cellular...Ch. 4 - Which of the following is a false statement...Ch. 4 - Enzymes speed up chemical reactions by...Ch. 4 - Prob. 6LTBCh. 4 - Prob. 7LTBCh. 4 - The electron transport chain ___________. is...Ch. 4 - Most of the energy in an ATP molecule is released...Ch. 4 - Anaerobic respiration ___________. generates...
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- Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise series of chemical reactions b. are speeded up by enzymes c. may break down or assemble molecules d. always produce energy (such as ATP)arrow_forwardThe capacity to do work best defines: a metabolic pathway. entropy. kinetic or potential energy. a chemical equilibrium. thermodynamics.arrow_forwardEnzymes have all the following characteristics except: a. they act as biological catalysts b. they are proteins c. they carry out random chemical reactions d. they convert substrates into products e. they can cause genetic diseasearrow_forward
- Enzymes _______. a. enhance reaction rates b. are affected by pH c. act on specific substrates d. all of the abovearrow_forwardI have a project to construct a poster with the pathways that we have discussed in class which include glycolysis to beta-oxidation of fatty acids that are depicted inside a cell. I need to include reactions that are regulated, ones that produce or consume energy, and those at branch points between pathways. I also need a list of regulated enzymes and what regulates them. I also need to include intracellular membranes and locate reactions in the appropriate subcellular location. I can only include each metabolite once per subcellular location and include transporters. Any information that can be given to me on the different pathways and reactions would be helpful. I am at a loss and could use some help figuriong out what to put on my project. Thank youarrow_forwardWhich statement is true regarding an endergonic reaction/pathway? Group of answer choices They have a positive delta G. They require outside energy such as solar energy (e.g., photosynthesis). They are involved in cellular work (e.g., biosynthesis). All previous answers None of these answersarrow_forward
- Cells can control enzymatic activity by allosterically regulating enzymes, and through what other means? secretion of enzymes out of the cell altering internal pH altering cell temperature localization of enzymes into specific organelles or membranes assembly of large aggregates of the same enzymearrow_forwardEnzymes increase the rate of a chemical reaction by providing an alternative path with a lower activation energy. True Falsearrow_forwardWhich of the following statements are true for enzymes? Check all that apply. The activity of some enzymes can be modulated by allosteric effectors. All enzymes are more active when dephosphorylated. Enzymes are subjected to a rapid turnover. All enzymes are more active when phosphorylated. The activity of some enzymes can be modulated by regulatory proteins.arrow_forward
- Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes increase the rate of a reaction, but do not change the free energy of a reaction. Enzymes frequently work in metabolic pathways, such that the activity of one enzyme can affect the activity of a second enzyme in the pathway by altering the concentration of a substrate or product of the second enzyme. Enzymes will alter the equilibrium of a reaction such that the enzyme increases the exergonic reaction relative to the endergonic reaction. Even if the enzyme forms a bond with a substrate during a reaction, the enzyme returns to its original form at the end of the reaction.arrow_forwardThe movement of energy between living organisms is a matter of atoms, molecules and compounds being built into larger molecules or being broke into smaller ones. Reviewing the two equations for energy transference, which one is building energy? 6CO2 + 6H2O + energy --------> C6H12O6 + 6O2 C6H12O6 + 6O2 ---------> 6CO2 + 6H2O + energyarrow_forwardThe metamorphosis of a tadpole to an adult frog involves a thorough reconstruction of the animal's body. All of the structural and physiological changes must be complete or the frog will not survive this transformation. Which type of regulation would ensure that the animal completed its transformation? enzymatic catalysis feedback inhibition positive feedback negative feedback please helparrow_forward
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Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY