Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 4TYU
If an enzyme in solution is saturated with substrate, the most effective way to obtain a faster yield of products is to
- A. add more of the enzyme.
- B. heat the solution to 90ºC.
- C. add more substrate.
- D. add an allosteric inhibitor.
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When an enzyme catalyzes a reaction… A. The pH changes B. Substrate concentration is reduced C. Product concentration is reduced D. Substrate concentration is increased
Which of the following statement on the process of enzyme production is false?
Select one:
a. Agglomeration is sometimes used to increase solubility of enzyme powder
b. After fermentation, intracellular enzymes can be directly extracted by filtration
c. Spray drying can be used to dry the enzyme products into powder forms
d. Chromatography is used to purify the enzyme produced
Which of the following is incorrect about chymotrypsin?
It uses acid-base catalysis
b. It has three essential amino acid residues (called the catalytic triad) at the active site
It does not use metal catalysis
d. It does not use covalent catalysis
a.
O c.
Chapter 6 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 6.1 - MAKE CONNECTIONS How does the second law of...Ch. 6.1 - Describe the forms of energy found in an apple as...Ch. 6.2 - Cellular respiration uses glucose and oxygen,...Ch. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.3 - How does ATP typically transfer energy from...Ch. 6.3 - Prob. 2CCCh. 6.3 - MAKE CONNECTIONS Does Figure 6.10a show passive or...Ch. 6.4 - Many spontaneous reactions occur very slowly. Why...Ch. 6.4 - Why do enzymes act only on very specific...
Ch. 6.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 6.5 - How do an activator and an inhibitor have...Ch. 6 - Choose the pair of terms that correctly completes...Ch. 6 - Prob. 2TYUCh. 6 - Which of the following metabolic processes can...Ch. 6 - If an enzyme in solution is saturated with...Ch. 6 - Some bacteria are metabolically active in hot...Ch. 6 - If an enzyme is added to a solution where its...Ch. 6 - DRAW IT Using a series of arrows, draw the...Ch. 6 - SCIENTIFIC INQUIRY DRAW IT A researcher has...Ch. 6 - SCIENCE, TECHNOLOGY, AND SOCIETY Organophosphates...Ch. 6 - FOCUS ON EVOLUTION A recent revival of the...Ch. 6 - FOCUS ON ENERGY AND MATTER Life requires energy....Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE Explain what is...
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- Match each reaction description to the type of enzyme that catalyzes the reaction. 1. Oxidation and reduction of compounds 2. Transfers a functional group from one compound to another compound 3. Utilizes water to break bonds within a compound 4. Addition/removal of a group of atoms and bonds within a compound 5. Forms a bond between two compounds A. Ligase B. Transferase C. Hydrolase D. Oxidoreductase E. Isomerase F. Lyasearrow_forwardEnzymes catalyze the rapid formation of product by: lowering the Gibbs free energy of the product raising the Gibbs free energy of the substrate lowering the activation energy between the substrate and the product raising the activation energy between the substrate and the product changing the AG (the change in Gibbs free energy) of the reactionarrow_forwardIt is the process of converting TAG to fatty acid salt and alcohol.* Please choose one correct answer only A. Acid hydrolysis B. Distillation C. Esterification D. Saponification E. None of the given optionsarrow_forward
- Refer to image below and answer the following: 1. What is the optimum temperature (degrees celsius) for the enzyme activity? 2. At what temperature when the emzyme was totally denatured?arrow_forwardGive at least 5 pharmaceutical products which contain bioactive enzymes. Give a sample picture together with the following information: source, use, and its mechanism of action.arrow_forwardUse the data from the table below to answer the questions on an ezyme obtained from potato extract. The greater the absorbance value, the more product generated for each chemical reaction Table 1: Summary Data for Enzyme Catalyzed Reaction Product Formation Measured as Absorbance Tube Distilled Water Catechol PTU (Inhibitor) Potato Extract Results (Absorbance) 1 5.5 ml 0.5 ml -- --- 0.02 2 5 ml 0.5 ml --- 0.5 ml 0.68 3 4.5 ml 0.5 ml 0.5 ml 0.5 ml 0.04 4 4.5 ml 0.5 ml 1.0 ml 1.26 5 4.5 ml 1.0 ml 0.5 ml 1.22 a) Explain with respect to enzyme activity why test tube 1 produced very little absorbance: b) Explain with respect to enzyme activity why test tube 3 produced very little absorbance: c) Explain how to tubes 4 and 5 differ with respect to reaction conditions. d) Explain with respect to enzyme activity why tubes 4 and 5 have similar absorbance and why both have…arrow_forward
- . If an enzyme in solution is saturated with substrate, the mosteffective way to obtain a faster yield of products is to(A) add more of the enzyme.(B) heat the solution to 90°C.(C) add more substrate.(D) add a noncompetitive inhibitor.arrow_forwardUrea is converted to ammonia and carbon dioxide by the action of urease. What will be the effect on the rate if the temperature of the reaction is lowered from 37°C (the optimum temperature) to 27°C? (Circle one). a. There will be no effect. b. The rate will slow down. c. The rate will double. d. The rate will triple.arrow_forwardOrganic molecules required by enzymes to enhance catalysis are called a. coenzymes b. zymogens c. proenzymes d. None of the abovearrow_forward
- INSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -arrow_forwardDefine the following as they apply to an enzymatic reaction. Give an example of each. a. Enzyme-limited: b. Substrate-limited:arrow_forwardCharacterization of enzyme activity does not allow us to: a. determine how different variables affect the enzyme's ability to function b. determine the molecular composition of the enzyme c. determine the optimal environment for an enzyme to function d. determine the effect of inhibitors on the enzymearrow_forward
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