Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 6, Problem 5FIB
Summary Introduction
Introduction:
Enzymes are defined as the macromolecular, biological catalyst that enhances the rate of
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“Enzyme increases the rate of a reaction by lowering the activation energy. In doing so, it also changes the equilibrium of that reaction.” Do you agree/disagree with this statement? And why?
Which of the following statements is TRUE regarding the structure of enzymes?
The shape of enzymes change to fit all types of substrates.
O Enzymes are usually lipids.
O Enzymes are denatured once they are used in a chemical reaction.
O The active site is where the enzyme binds with the substrate.
Which of the following statements is not true about enzymes? *
Our bodies naturally produce enzymes
The substance that the enzyme bind is called active site
An enzyme may bind to two or more substrates giving the product.
An enzyme may bind to one substrate giving more than one product.
Chapter 6 Solutions
Biology
Ch. 6.1 - Prob. 1TCCh. 6.1 - Energy Unleashed Much like a cars engine, the...Ch. 6.1 - define energy and work?Ch. 6.1 - define potential energy and kinetic energy and...Ch. 6.1 - State and explain the first and second laws of...Ch. 6.2 - Is glucose breakdown endergonic or exergonic? What...Ch. 6.2 - Prob. 1CSCCh. 6.2 - describe how energy is captured and released by...Ch. 6.2 - explain exergonic and endergonic reactions and...Ch. 6.2 - explain activation energy?
Ch. 6.3 - Prob. 1TCCh. 6.3 - In hope of reducing plastic waste, some towns and...Ch. 6.3 - name and describe two important energy-carrier...Ch. 6.3 - explain coupled reactions?Ch. 6.4 - Can an enzyme catalyst make an endergonic reaction...Ch. 6.4 - You may have seen the almost magical glow of...Ch. 6.4 - explain how catalysts reduce activation energy?Ch. 6.4 - explain how enzymes function as biological...Ch. 6.5 - Health Watch Lack of an Enzyme Leads to Lactose...Ch. 6.5 - describe how cells regulate the rate at which...Ch. 6.5 - explain how poisons, drugs, and environmental...Ch. 6.5 - Prob. 2TCCh. 6 - Which of the following is True? a. Enzymes...Ch. 6 - Prob. 2MCCh. 6 - Prob. 3MCCh. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - Prob. 1FIBCh. 6 - Prob. 2FIBCh. 6 - Prob. 3FIBCh. 6 - Prob. 4FIBCh. 6 - Prob. 5FIBCh. 6 - Prob. 6FIBCh. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - While vacuuming, you show off by telling a friend...Ch. 6 - Refute the following: According to evolutionary...Ch. 6 - Can a bear use all the energy contained in the...
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- 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_forwardWhat are the steps for an enzyme to create a product in order: The energy of activation is lowered so the reaction can happen quicker. Substrate attaches to the active site. The product is created and released from the active site. The energy of activation is lowered so the reaction can happen slower. A specific substrate attaches to the active site.arrow_forwardAll of the following are characteristics of the active site of an enzyme EXCEPT? It has less water content compared to the cytoplasm. It is found somewhere in the interior of the enzyme. It is the binding site for many different kinds of molecules. It has a complementary shape to its substrate.arrow_forward
- Homeostasis is important for all of the functions of the human body. Why is maintaining homeostasis important for enzymes? Group of answer choices: To maintain their normal structure and function To prevent substrate from binding to the enzyme To allow the substrate to bind forever To cause the enzyme to fold differently for each reactionarrow_forwardAll of the following are characteristics of the active site of an enzyme EXCEPT? Select the correct response. It has a complementary shape to its substrate. It is the binding site for many different kinds of molecules. It is found somewhere in the interior of the enzyme. It has less water content compared to the cytoplasm.arrow_forwardEnzymes are not used up in chemical reactions, so what exactly does an enzyme do? Refer to activation energy (transition state etc)arrow_forward
- Which of the following does NOT describe enzymes? have primary, secondary, tertiary, and sometimes quaternary structure can increase the rate of chemical reactions contain molecules that have amino and carboxyl groups are chemically changed during their participation in chemical reactions subunits are joined by peptide bondsarrow_forwardWhich of the following statements regarding catalysts is false? * A catalyst increases the rate of a reaction by giving the reaction an alternate pathway with a lower activation energy. * Catalysts don't need to be present in large amounts because they are regenerated during the reaction. * Enzymes act as catalysts in our bodies. * Catalysts do not participate in the reaction. * The shape of an active site on an enzyme is unique, allowing it to react with only one substrate.arrow_forwardA student in lab is trying to use an enzyme to obtain a reaction product . After several attempts , the enzyme reaction continually fails . Using what you know about some factors that affect enzyme function , you ask the student questions to determine what has gone wrong . List three questions you would ask , and why these questions ( and their potential answers ) are important to determine why the reaction is not happening.arrow_forward
- Which of the following statements about enzyme function is FALSE? Enzymes change shape permanently after a reaction, and can’t be re-used. Enzymes are types of proteins. Enzymes are highly specific molecules. Enzymes lower the activation energy of a reaction. Enzymes bind to substrates a an area called the “active site."arrow_forwardAn organic molecule that catalyzes a chemical reaction, without itself becoming used up or consumed, is the correct definition for which of the following terms? the substrate the enzyme the reactant the ligand the productarrow_forwardThe abbreviation ATP stands for______ . The molecule is synthesized by cells from_______and_______ . This synthesis requires an input of______, which is temporarily stored in ATP.arrow_forward
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