Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 6, Problem 3FIB
Summary Introduction
Introduction:
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Which would be necessary to keep the reactions of life going, if enzymes were not present?
1. smaller atoms
2. higher temperatures
3. larger cells
4. larger proteins
Why is an input of energy needed for all chemical reactions?
Which of the following is/are TRUE of an enzyme?
Enzymes lower the release of free energy
Enzymes are not consumed in a reaction
Not all enzymes are proteins
Enzymes only affect endergonic reactions
Enzymes only affect exergonic reactions
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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Similar questions
- Which of the following statements are correct about how enzymes accelerate chemical reactions (select all that apply)? A. Enzymes bind substrates to raise their effective concentration B. Enzymes enhance the rate of a chemical reaction C. Enzymes catalyze chemical reactions by destabilizing transition states D. Side chains of protein provide reactive groups that facilitate reaction E. Enzymes shift the equilibrium of a chemical reaction to favor product formationarrow_forwardWhich of the following statements is a lie? Select one: a. Chemical energy is the energy within chemical bonds. Energy is required for bonds to break while energy is released when bonds form. b. Exergonic chemical reactions release more energy than they absorb and the catabolism of the food in an energy bar serves as an example. c. The many forms of energy used up by cells comes from the breakdown of the chemical energy from the food we digest.arrow_forwardWhich of the following statements are incorrect? Enzymes and inorganic catalysts speed up reactions. Enzymes and inorganic catalysts are non-specific. Enzymatic activity can be regulated. Enzymes undo allosteric change and inorganic catalysts cannot.arrow_forward
- Chemical reactions that take place in living systems include A. Neutralization reaction B. Condensation reaction C. Hydrolysis reaction D. All the abovearrow_forwardThe graph below shows how temperature affects the rate of chemical reactions At what temperature is the rate of reaction the highest?arrow_forwardWhich of the following statements regarding enzymes is true? A. Enzymes decrease the free energy change of a reaction. B. Enzymes cjange the direction of chemical reaction. C. Enzymes prevent changes in substrate concentrations. D. Enzymes increase the rate of a reaction. E. Enzymes are permanently altered by the reactions they catalyze.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_forwardWhich of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.arrow_forwardBreaking large molecules into smaller ones is catabolic and releases energy. Conversely, building large molecules from small ones is anabolic and consumes energy. Therefore, hydrolysis is A) catabolic, exergonic, and negative △G B) anabolic, endergonic, and negative △G C) anabolic, exergonic, and positive △G D) anabolic, endergonic, and positive △Garrow_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_forward___________________ are molecules that influence the speed of chemical reactions, and are not consumed in the process.arrow_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_forward
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