Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 6.1, Problem 2TYK
Summary Introduction
Introduction:
Entropy is the increase in the randomness of a system that is present in the environment. The entropy is the measure of the system’s thermal energy that is present per unit temperature, which is unavailable for performing any useful work.
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Which of the following will occur if there is an increase in enzyme or substrate concentration?
interfere with the reaction.
increase the rate of reaction.
decrease the rate of reaction.
not change the rate of product produced
reduce the rate of product produced.
Coenzymes function to:
change the shape of enzymes, allowing different additional substrates to bind.
denature the enzyme, stopping the chemical reaction from occurring.
interact directly with enzymes, either enabling the reaction to occur or making the substrate-enzyme interaction more efficient.
dilate blood vessels, allowing more blood to flow, allowing more substrate to reach enzymes.
absorb excess hydrogen and hydroxide ions, keeping the pH relatively stable, so that reactions can occur most efficiently.
The major source of energy for most cells comes from
absorbing solar and geothermal energy.
utilizing high energy compounds.
breaking the last bond in ATP.
making the last bond in ATP.
Chapter 6 Solutions
Principles of Biology
Ch. 6.1 - Which do you think has more entropy, an NaCl...Ch. 6.1 - Prob. 1TYKCh. 6.1 - Prob. 2TYKCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1TYKCh. 6.2 - An inhibitor raises the Km for an enzyme but has...Ch. 6.3 - Prob. 1CCCh. 6.3 - Prob. 1TYK
Ch. 6.3 - Prob. 2TYKCh. 6.3 - Prob. 3TYKCh. 6.4 - Prob. 1CCCh. 6.4 - Prob. 1BCCh. 6.4 - Prob. 1TYKCh. 6.4 - Prob. 2TYKCh. 6.4 - Prob. 2CCCh. 6.5 - Prob. 1TYKCh. 6.6 - During the citric acid cycle, what happens to...Ch. 6.7 - Prob. 1CCCh. 6.7 - Prob. 2CCCh. 6.7 - Prob. 3CCCh. 6.7 - Prob. 1TYKCh. 6.7 - Prob. 2TYKCh. 6.7 - Prob. 3TYKCh. 6.8 - Prob. 1CCCh. 6.8 - Prob. 1TYKCh. 6 - According to the second law of thermodynamics....Ch. 6 - Reactions that release free energy are exergonic....Ch. 6 - Prob. 3TYCh. 6 - Prob. 4TYCh. 6 - Prob. 5TYCh. 6 - Prob. 6TYCh. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Prob. 10TYCh. 6 - Describe the mechanism and purpose of feedback...Ch. 6 - What causes the rotation of the y subunit of ATP...Ch. 6 - PRINCIPLES A principle of biology is that living...Ch. 6 - Discuss how life can maintain its order in spite...Ch. 6 - Prob. 2CBQ
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- Energy is stored long-term in the bonds of _____ and used short-term to perform work from a(n)_____molecule. a. ATP : glucose b. an anabolic molecule : catabolic molecule c. glucose: ATP d. a catabolic molecule : anabolic moleculearrow_forwardEnzymes _______. a. enhance reaction rates b. are affected by pH c. act on specific substrates d. all of the abovearrow_forwardWhich 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_forward
- Which of the following is/are TRUE of hydrolysis? Hydrolysis results in a positive change in free energy Hydrolysis is always nonspontaneous A hydrolysis reaction absorbs free energy from its surroundings Hydrolysis is an exergonic pathway Hydrolysis is a catabolic pathwayarrow_forwardplease see attachedarrow_forwardWhich statement is correct for the reaction shown? Glucose ATP ADP Glucose 6-phosphate Glucose and ATP are reactants, and a phosphate is transferred from glucose to ATP. Glucose and ADP are reactants, and a phosphate is transferred from glucose to ADP. Glucose and ATP are reactants, and a phosphate is transferred from ATP to glucose. Glucose and ADP are reactants, and a phosphate is transferred from ADP to glucose.arrow_forward
- Enzymes can: make exothermic reactions into endothermic reactions. change the direction of a biochemical pathway. contain multiple subunits and be very complex (e.g., ATP synthase) be broken down into monosaccharide subunits. None of these.arrow_forwardWhich of the following are examples of kinetic forms of energy? Select all that apply. Question options: A granola bar made up of energy-rich macromolecules. Water rushing over Multnomah Falls. Na+ diffusing into a cell. A high concentration of Ca2+ in the sarcoplasmic reticulum compared to the cytosol. Osmosis.arrow_forwardMC: Which of the following are true of an enzyme? An enzyme is never needed for an exothermic reaction An enzyme works by minimizing the AG An enzyme is never consumed in a reaction An enzyme is not always a proteinarrow_forward
- Which of the following affects the rate of enzyme driven reaction? rate constant air pressure concentration of enzyme concentration of substrate light intensity pH temperaturearrow_forwardIn order to avoid wasting cell resources, feedback mechanisms to regulate enzyme activity are a feature of: Group of answer choices. Choose Allostery Kinetics Thermodynamics Metabolismarrow_forwardExplain the following term, be sure to include energy requirements for each process and a biological example of each process: active transportarrow_forward
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