Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Question
Chapter 7.2, Problem 3NP
Summary Introduction
Introduction:
Cell performs various functions to stay vital. Every function of the cell requires some amount of energy. Various reactions produce energy within the body which is utilized by other reactions.
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I. True or Flase
a. An inhibitor may compete with the substrate for binding to the active site of an enzyme.
b. Enzymes increase the rate of a chemical reaction by providing an alternative path with a lower activation energy.
c. Enzymes are unconsumed during a reaction and can alter the position of chemical equilibrium.
Study the graph.
Activation
energy
Reactants
Products
Course of Reaction -
Based on the information in the graph, choose the
statement that best describes the reaction it
depicts.
А.
The reaction absorbs energy.
В.
The reaction releases energy.
С.
The reaction fails to proceed because of
insufficient energy.
D.
The reaction fails to proceed because it
does not involve an energy change.
answer
Why do you believe this is the correct
answer?
Energy
1. • Active site
• Substrate
• Enzyme-substrate complex
2. What is an enzyme’s role in biochemical reactions?
Chapter 7 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 7.1 - Describe the relationship among metabolism,...Ch. 7.1 - Fully describe the structure and function of...Ch. 7.1 - Differentiate between constitutive and regulated...Ch. 7.1 - Diagram four major patterns of metabolic pathways.Ch. 7.1 - Describe how enzymes are controlled.Ch. 7.1 - NCLEX PREP 2. An enzyme that catalyzes starch is...Ch. 7.2 - Name the chemical in which energy is stored in...Ch. 7.2 - Create a general diagram of a redox reaction.Ch. 7.2 - Identify electron carriers used by cells.Ch. 7.2 - Prob. 3NP
Ch. 7.3 - Name the three main catabolic pathways and the...Ch. 7.3 - Construct a paragraph summarizing glycolysis.Ch. 7.3 - Describe the Krebs cycle, with emphasis on what...Ch. 7.3 - Discuss the significance of the electron transport...Ch. 7.3 - State two ways in which anaerobic respiration...Ch. 7.3 - Summarize the steps of microbial fermentation, and...Ch. 7.3 - Describe how noncarbohydrate compounds are...Ch. 7.3 - Q. From this information, can you identify another...Ch. 7.4 - Prob. 16AYPCh. 7.4 - Define amphibolism.Ch. 7.4 - Prob. 2MMCh. 7 - NCLEX PREP 1. Which of the following is/are...Ch. 7 - Prob. 1QCh. 7 - Prob. 2QCh. 7 - Prob. 3QCh. 7 - Prob. 4QCh. 7 - Prob. 5QCh. 7 - Prob. 6QCh. 7 - Prob. 7QCh. 7 - Prob. 8QCh. 7 - Prob. 9QCh. 7 - Prob. 10QCh. 7 - Prob. 11QCh. 7 - Prob. 12QCh. 7 - Prob. 13QCh. 7 - Prob. 14QCh. 7 - Prob. 15QCh. 7 - Prob. 16QCh. 7 - Defend this statement: Microbes (and their...Ch. 7 - Prob. 18QCh. 7 - Prob. 19QCh. 7 - Prob. 20QCh. 7 - Polymerase chain reaction (PCR) is a lab...Ch. 7 - From chapter 3, figure 3.15. On these depictions...
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Similar questions
- Which of the following comparisons or contrasts between endergonic and exergonic reactions is false? Endergonic reactions have a positive ?G and exergonic reactions have a negative ?G Endergonic reactions consume energy and exergonic reactions release energy Both endergonic and exergonic reactions require a small amount of energy to overcome an activation barrier Endergonic reactions take place slowly and exergonic reactions take place quickly.arrow_forwardIn the following graph: A represents the product. B represents the energy of activation when enzymes are present. C is the free energy difference between A and D. C is the energy of activation without enzymes. E is the difference in free energy between the reactant and the products.arrow_forwardnes 41. Enzymes: To dec A. increase the amount of energy released during a reaction. B. decrease the amount of energy required for areaction. C. increase the amount of energy required for a reaction. D. decrease the amount of energy released during a reaction. essu one must drinka D.arrow_forward
- . To catalyze a biochemical reaction, an enzyme typically dissociates into additional reactant molecules, thereby increasing the геaction ratе decomposes and releases energy to increase the number of successful collisions between reactant molecules binds temporarily to reactant molecules to lower the activation energy of the reaction drives the reaction to completion by consuming byproducts of the reaction CLEAR ALLarrow_forward1. Match the following words with their definitions. Product Active site Enzymes Catalyst Substrate Activation energy a. amount of energy required for a chemical reaction to occur b. substances that bring about a chemical reaction without being changed itself c. substances that enzymes act upon d. regions on the surface of enzymes that fit the substrate e. substance formed from the substrate at the end of the chemical reaction with an enzyme f. proteins that speed up a chemical reactionarrow_forward2:51 Enzymes.pdf 7 of 8 Enzyme Active sites Substrates Enzyme substrate complex Enzyme is recycled Substrate modification Product C • Label the diagram on the following slide: • 1. substrates • 2. products • 3. energy of activation without enzyme • 4. energy of activation with enzyme • 5. Which has more energy in this reaction, the substrates or the products? • 6. What happens to the difference in energy during the reaction? How dees an enzyme make reaction go ster? a chemical A+B evergy Time (mim) Copyrighte T Jhe eya Son uaOLOGr TU S 22arrow_forward
- solve these no copy from google describe reason in your own and good answer will get like like 1)One of the functions of metabolism is to provide the energy needed to all the processes required by the body. * a)true b)false 2)The energy to reduce CO2 to C of cellular compounds is derived from a: * a)Oxidation b)Reduction c)Incorporation 3)The red and green bacteria are: * a)Photochemotrophic b)photoheterotrophs c)photoautotrophsarrow_forward1. In zero order reaction, the reaction rate depends only on enzyme concentration. In first order reaction the reaction rate is directly porportional to substyrate concentration a. first statement is false and second statement is true b. both statement is true c. both statement is false d. first statement is true and second statement is false 2. These are catalyst that can be used in the monitoring and diagnosis of disease and their remarkable properties make them sensitive indicators of pathologic changes. a. enzymes b. electrolytes c. substrate d. none of these 3. ALT is stavle in serum at refrigirator or temp for up to 3 weeks, indefinitely if frozen AST has the same stability but markedly decreases with freezing a. both statement are true b. both statement are false c. first statement is true second is false d. second statement is true first statement is falsearrow_forward"Indicate whether each of the statements in Problem 7 applies to: *Lock-and-key model * Induced-fit model * Neither It is the location where substrate molecules are produced. It always has a fixed, rigid geometry. It always has a geometrical shape exactly complementary to that of substrate. It always accommodates several structurally related substrates. It is the location where substrate molecules are converted to product molecules. It always has a shape that has a degree of flexibility to it. It always accommodates only one specific substrate.arrow_forward
- 6. Use the graph below to answer the questions in 6a and 6b. Free Energy A+B a. Progress of the Reaction C. d. e. C+D a. The forward reaction in figure above is described as circle one: (Endothermic/ Exothermic) and is part of circle one: (Anabolic (building) / Catabolic (breaking down) metabolism. The change in free energy is circle one: (-AG / +AG) The forward reaction would be written as: + Please select the correct letters from graph (a-e) to match the description for the forward reaction Activation energy without an enzyme. Activation energy with an enzyme. AG (change in free energy). The role of the enzyme is to circle one: (regulate / speed up /inhibit) a reaction by circle one: (INCREASING / DECREASING) the Does the forward reaction require an input of cellular energy? circle one: (YES / NO) Does the forward reaction release energy? circle one: (YES / NO) Is the activation energy provided by ATP circle one: (YES / NO). It is provided by physical strain on the bond due to how…arrow_forward2. Draw a graph showing a downhill (spontaneous) reaction, that requires some activation energy to get it going. Then draw and clearly label on the graph b. The activation energy for the reaction (use a bracket to indicate the upper and lower limits) c. The free energy change for the reactions (use a bracket to indicate the upper and lower limits) d. How an enzyme will change the energetics of the reaction. I suggest you use a dotted line for the enzyme.arrow_forward6. Which of the following is true of the binding energy derived from enzyme-substrate interactions? A) It cannot provide enough energy to explain the large rate accelerations brought about by enzymes. B) It is sometimes used to hold two substrates in the optimal orientation for reaction. C) It is the result of covalent bonds formed between enzyme and substrate. D) Most of it is derived from covalent bonds between enzyme and substrate. E) Most of it is used up simply binding the substrate to the enzyme. Barrow_forward
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