Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 6, Problem 10TYU
FOCUS ON EVOLUTION
A recent revival of the antievolutionary “intelligent design” argument holds that biochemical pathways are too complex to have evolved, because all intermediate steps in a given pathway must be present to produce the final product. Critique this argument. How could you use the diversity of
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A dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? – for this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of? Keep the answer between 2-3 sentences
How could you use the diversity of metabolic pathways that produce the same or similar products to critique this argument?
Rank the steps from first to last.
a. New enzymes cause modification of the pathway in an advantageous way. b. The biochemical pathway is gradually modified. c. A pathway exists and accomplishes some functions. d. An organism with cellular enzymes has mutations that allow new enzymes to arise.
Which statement about metabolic pathways is false?
OA. A specific enzyme catalyzes each transformational step.
B. Chemical transformations occur in a series of separate chemical reactions.
O C. Inhibitors that target some key enzymes in a pathway can slow the rate of reaction.
D. Activators that target some key enzymes in a pathway can increase the rate of reaction.
E. In prokaryotes, reactions in a pathway are located in multiple compartments.
Chapter 6 Solutions
Campbell Biology in Focus; 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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- Part A: Say that a cell is running a metabolic pathway that follows the same pattern as the diagram and something happens that prevents enzyme 3 from reacting normally. Of the following options, which one is the end result of this interrupted metabolic pathway? Part B: for this reaction to be an example of feedback inhibition, the ____ would have to be blocking enzyme 3. Answer choices: • pH • Product • Salinityarrow_forwardWhich of the following is NOT a true statement about the diagram below? Intermediate A Intermediate B Pathway operates End-product © 2019 Parson Education ne O O O O O Substrate -Enzyme 1 Allosteric site -Enzyme 2 -Enzyme 3- Pathway shuts down Bound end-product The diagram shows a metabolic pathway Each enzyme is specific for its substrate The product of each enzyme reaction becomes a substrate for the next enzyme None of the other four answers (all are true statements) The end-product serves as a competitive inhibitor of the substrate on Enzyme 1arrow_forward1, DIm 'T (4) T, U, G, and C 2. Read.carefully the "help-wanted advertisement" below. Then select which applicant would be best qualified for the job. Executive Position available. Must be able to maintain genetic continuity through replication and to control cellular activity by regulation of enzyme production. Limited number of openings available. All benefits. Ple. (1) ATP (2) DNA (3) protein catalyst (4) receptor molecule 3. A gene mutation may be transmitted to offspring if the mutation occurs within (1) an egg cellarrow_forward
- Which of the following is NOT a true statement about the diagram below? Intermediate A Intermediate B End-product Pathway operates 2019 Pearson Education, Inc. O O O O Substrate Enzyme 1- Allosteric site -Enzyme 2 Enzyme 3- Pathway shuts down Bound end-product Feedback Inhibition The end-product None of the other four answers (all are true statements) Each enzyme is specific for its substrate The product of each enzyme reaction becomes a substrate for the next enzyme The diagram shows a metabolic pathway serves as a competitive inhibitor of the substrate on Enzyme 1arrow_forwardMetabolic engineering (systems biology) is a systems-orientated approach to the analysis and synthesis of entire biological systems with the aim of controlling cellular properties. Explain this statementarrow_forwardUsing a series of arrows, draw the branch metabolic reaction pathway described by the following statements, and then answer the questions at the end. Use red arrows and X minus signs (-) to indicate inhibitions. The image below gives you an idea of how to start out for creating the pathway. m a. L can form either M or N b. M can form O c. O can form either P or R d. P can form Q e. R can form S f. O inhibits the reaction of L to form M g. Q inhibits the reaction of O to form P h. S inhibits the reaction of O to form R Which step(s), if any, in the above pathway above exhibit feedback inhibition? Selected Answer: Answers: f and a f, g, and hi f and a g harrow_forward
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