Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 6, Problem 5RQ
Summary Introduction
To compare:
Breaking down of glucose in a cell to set it on fire with a match and determine the source of energy in each case.
Introduction:
A
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Enzymes lower the activation energy, but where does the energy to lower the activation energy come from?
Chapter 6 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 6.1 - Energy Unleashed Much like a cars engine, the...Ch. 6.1 - What other changes would help reduce fossil fuel...Ch. 6.1 - define energy and work?Ch. 6.1 - Could one design a roller coaster that didnt use...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 - Energy Unleashed Marathoners rely on glycogen...Ch. 6.2 - describe how energy is captured and released by...Ch. 6.2 - Is glucose breakdown endergonic or exergonic? What...Ch. 6.2 - explain exergonic and endergonic reactions and...
Ch. 6.2 - explain activation energy?Ch. 6.3 - name and describe two important energy-carrier...Ch. 6.3 - Prob. 1TCCh. 6.3 - explain coupled reactions?Ch. 6.4 - explain how catalysts reduce activation energy?Ch. 6.4 - You may have seen the almost magical glow of...Ch. 6.4 - Can an enzyme catalyst make an endergonic reaction...Ch. 6.4 - explain how enzymes function as biological...Ch. 6.5 - describe how cells regulate the rate at which...Ch. 6.5 - Health Watch Lack of an Enzyme Leads to Lactose...Ch. 6.5 - Prob. 1TCCh. 6.5 - explain how poisons, drugs, and environmental...Ch. 6 - While vacuuming, you show off by telling a friend...Ch. 6 - Prob. 1FIBCh. 6 - Which of the following is True? a. Enzymes...Ch. 6 - Prob. 1RQCh. 6 - Refute the following: According to evolutionary...Ch. 6 - Prob. 2FIBCh. 6 - Prob. 2MCCh. 6 - Prob. 2RQCh. 6 - Can a bear use all the energy contained in the...Ch. 6 - Prob. 3FIBCh. 6 - Prob. 3MCCh. 6 - Prob. 3RQCh. 6 - Prob. 4FIBCh. 6 - Prob. 4MCCh. 6 - Prob. 4RQCh. 6 - Prob. 5FIBCh. 6 - Prob. 5MCCh. 6 - Prob. 5RQCh. 6 - Prob. 6FIBCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQ
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- List three ways to alter the rate of an enzyme-mediated reaction.arrow_forwardLook at the glycolysis pathway (Figure 22.3). With what type of reactions are kinase enzymes usually associated?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_forward
- When you exercise, your muscles are using ATP to do the movements. Thus, the cell is doing cellular respiration in order to replace the ATP it has used. A) Draw a series of diagrams showing the energy transfers that occur during exercise (include: ATP, muscle, heat, cell respiration, glucose). B) When we exercise, we produce a lot of heat, to cool us down, our body produces sweat. According to the laws of thermodynamics, where is the heat coming from? C) When we exercise to lose weight, where is that mass going (do we sweat it out, it turns into heat, becomes digestive waste, how do we eliminate it?)?arrow_forwardCan you answer all the parts to following question, true or false: Q27: A: Because enzymes reduce the activation energy of a reaction the resulting free energy produced by the reaction is also reduced (True or False) B: Living things create energy through the breakdown of food into nutrients which the cell can use. (True or False) C: All tissues in the body are able to use ketone bodies to generate energy (True or False) D: Autophosphorylation is a mechanism of receptor activation for both Insulin and leptin (True or False)arrow_forwardDescribe the endogenous mechanisms that regulate cholesterol synthesis. Want solution ASAParrow_forward
- Imagine you are working in a lab, and you are performing two chemical reactions. You notice that Reaction A occurs much faster than Reaction B, and that both reactions release the same amount of heat. Which of the following conclusions can be made from your observation? Reaction A has the same activation energy as Reaction B, and the AG of Reaction A is more negative (i.e., a larger negative number) than the AG for Reaction B. Reaction A has a lower activation energy than Reaction B, and the AG of Reaction A is the same as the AG of Reaction B. Reaction A has a higher activation energy than Reaction B, and the AG of Reaction A is the same as the AG of Reaction B. Reaction A has the same activation energy as Reaction B, and the AG of Reaction A is less negative (i.e., a smaller negative number) than the AG for Reaction B.arrow_forwardchoose the correct answer: 1- Within the cell, many chemical reactions that, by themselves, require energy input (have a positive free-energy change) can occur because the reactions: A) May be coupled to the hydrolysis of ATP.B) Are catalyzed by enzymesC) Are aided by various metal ions that act as catalystsD) Take place when the cells are at unusually high temperatures>E) Take place very slowly. 2- ATP synthesis is powered by: A) proton gradient.B) GTP hydrolysis.C) cAMP.D)Coenzyme motive force.arrow_forwardConsider the reaction: Galactose 1-phosphate + UDP-glucose → UDP-galactose + glucose 1-phosphate Which pairing correctly matches the enzyme class and Enzyme Commission number for the enzyme that catalyzes this reaction? translocase; 2 translocase; 7 transferase; 2 transferase; 7 isomerase; 5arrow_forward
- Kinases catalyze the transfer of a phosphate group from a phosphate donor such as adenosine triphosphate (ATP) to a substrate. A well‑known kinase is hexokinase. Hexokinase catalyzes the first step of the glycolysis cycle, and converts glucose to glucose‑6‑phosphate. The reaction of glucose with ATP is shown. The enzyme‑bound base is abbreviated as :B−, and ATP is abbreviated as a diphosphate bonded to adenosine monophosphate (AMP).arrow_forwardKinases catalyze the transfer of a phosphate group from a phosphate donor such as adenosine triphosphate (ATP) to a substrate. A well‑known kinase is hexokinase. Hexokinase catalyzes the first step of the glycolysis cycle, and converts glucose to glucose‑6‑phosphate. The reaction of glucose with ATP is shown. The enzyme‑bound base is abbreviated as :B−, and ATP is abbreviated as a diphosphate bonded to adenosine monophosphate (AMP). The first arrow of the reaction mechanism is drawn for you; draw the remaining curved arrows to show how phosphorylation occurs.arrow_forwardIn theory, a plant kept in total darkness could still manufacture glucose, if it were supplied with which molecules?arrow_forward
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