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Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN: 9781305960060
Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 20.60E
Why are enzymes that are used for laboratory or clinical work stored in refrigerators?
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What is the difference between a catalyst and an enzyme?
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catalysts that increase the rates of biochemical reactions.
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Chapter 20 Solutions
Chemistry for Today: General, Organic, and Biochemistry
Ch. 20 - What is the role of enzymes in the body?Ch. 20 - List two ways that enzyme catalysis of a reaction...Ch. 20 - What is the relationship between an enzyme and the...Ch. 20 - Why are so many different enzymes needed?Ch. 20 - Define what is meant by the term enzyme...Ch. 20 - Prob. 20.6ECh. 20 - Prob. 20.7ECh. 20 - Prob. 20.8ECh. 20 - What is the relationship between urea and urease?...Ch. 20 - Match the following enzymes and substrates: Enzyme...
Ch. 20 - Match the following general enzyme names and...Ch. 20 - Prob. 20.12ECh. 20 - Some enzymes consist of protein plus another...Ch. 20 - Prob. 20.14ECh. 20 - Prob. 20.15ECh. 20 - Prob. 20.16ECh. 20 - Prob. 20.17ECh. 20 - Prob. 20.18ECh. 20 - Prob. 20.19ECh. 20 - How is enzyme specificity explained by the...Ch. 20 - Prob. 20.21ECh. 20 - Prob. 20.22ECh. 20 - Prob. 20.23ECh. 20 - What observations may be used in experiments to...Ch. 20 - Prob. 20.25ECh. 20 - Prob. 20.26ECh. 20 - Prob. 20.27ECh. 20 - Write a single sentence to summarize the...Ch. 20 - Prob. 20.29ECh. 20 - Prob. 20.30ECh. 20 - Prob. 20.31ECh. 20 - When handling or storing solutions of enzymes, the...Ch. 20 - Prob. 20.33ECh. 20 - Prob. 20.34ECh. 20 - Prob. 20.35ECh. 20 - List an antidote for each of the two poisons in...Ch. 20 - Prob. 20.37ECh. 20 - Prob. 20.38ECh. 20 - Describe the importance of zymogens in the body....Ch. 20 - Prob. 20.40ECh. 20 - Prob. 20.41ECh. 20 - Name and contrast the two types of modulators.Ch. 20 - Prob. 20.43ECh. 20 - Prob. 20.44ECh. 20 - Prob. 20.45ECh. 20 - Prob. 20.46ECh. 20 - Prob. 20.47ECh. 20 - Prob. 20.48ECh. 20 - Prob. 20.49ECh. 20 - Prob. 20.50ECh. 20 - Prob. 20.51ECh. 20 - Prob. 20.52ECh. 20 - Prob. 20.53ECh. 20 - Prob. 20.54ECh. 20 - Explain how the pasteurization of milk utilizes...Ch. 20 - Prob. 20.56ECh. 20 - Prob. 20.57ECh. 20 - Prob. 20.58ECh. 20 - Prob. 20.59ECh. 20 - Why are enzymes that are used for laboratory or...Ch. 20 - Describe the difference between graphs showing...Ch. 20 - Answer the question associated with Figure 20.3....Ch. 20 - Prob. 20.63ECh. 20 - Prob. 20.64ECh. 20 - Prob. 20.65ECh. 20 - Prob. 20.66ECh. 20 - Prob. 20.67ECh. 20 - Which of the following is not a characteristic of...Ch. 20 - The human body has an average pH of about 7 and a...Ch. 20 - Look at Table 20.4 and identify the proteolytic...Ch. 20 - Saliva contains mucus, water, and _______, which...Ch. 20 - Most human enzymes function best in the...Ch. 20 - The site on an enzyme molecule that does the...Ch. 20 - The process by which an enzyme acts on the...Ch. 20 - In the multienzyme sequence shown below, molecules...
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- Question 18 of 19 Submit Which of the following statements is false about catalysts? A) Enzymes are biological catalysts. B) A catalyst is consumed in a chemical reaction. C) A catalyst increases reaction rate by providing an alternate reaction pathway with a lower activation energy. D) A catalyst may undergo change during a reaction but is unchanged at the end of a reaction. E) Catalysts may be homogeneous or heterogeneous.arrow_forwardExplain Lactase, an example of a biological catalyst ?arrow_forwardWhat's the product for this equilibrium reaction and what type of reaction is this. Why does this specific product form.arrow_forward
- Which of the following chemical kinetic (reaction rates) factors in biological systems results in a more efficient system? Group of answer choices Decreased activation energy. Large cell size. Liquid state of cells. Solid state of cells. Lower body temperature.arrow_forwardUse the graph below to help answer the following question: A+B Time АВ Released Energy Usedarrow_forwardEnzymes are ____________ meaning they bind only to a __________ molecular shape to catalyze a specific reaction.arrow_forward
- State whether the following changes will result in an increase in the reaction rate, a decrease in the reaction rate, or whether the reaction rate will be unaffected. •decreasing the surface area of a reactant •decreasing the concentration of a product •increasing the temperature •adding a catalystarrow_forwardA chemical species that is not consumed during a chemical reaction and increases the rate of the reaction is referred to as a(n): A inhibitor. B catalyst. C spectator ion. D reactive intermediate.arrow_forwardWhat do you call the high-energy complex that forms from the collision of reactants, and which subsequently falls apart to yield the products? a. steady state b. catalyst c. intermediate d. transition statearrow_forward
- Why are enzymes important? For example, what is the importance of the enzyme carbonic anhydrase in the body?arrow_forwardFor each of the changes listed will the rate of the following chemical reaction increase, decrease, or remain the same? Fe(s)+2HCl(aq)FeCl2(aq)+H2(g) a. the concentration of HCl is decreased b. the iron is ground into a powder c. a catalyst is added to the reaction mixture d. the temperature of the solution is decreasedarrow_forwardWhat does a catalyst do? Increases the concentration of the reactants which increases the reaction rate. Raises the potential energy of the reactants so that the reaction will occur more easily. Lowers the activation energy of a reaction. Creates products from reactants.arrow_forward
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