Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 7, Problem 8TYU
Test Your Understanding
8. “Induced fit” means that when a substrate binds to an enzyme’s active site, (a) it fits perfectly, like a key in a lock (b) the substrate and enzyme undergo conformational changes (c) a site other than the active site undergoes a conformational change (d) the substrate and the enzyme become irreversibly bound to each other (e) c and d
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. MAKE CONNECTIONS Considering how enzymes function (see Concept 8.4), explain why vitamins are requiredin very small amounts.
1a-Enzymes serve as catalysts for chemical reactions. What does this mean? Select all that apply.
Select one or more:
a. Enzymes make reactions more likely to occur.
b. Enzymes increase the activation energy. c. Enzymes decrease the free energy (?G) of a reactio
d. Enzymes increase the free energy (?G) of a reaction.
1b-When ATP is hydrolysed:
Select one:
a. The energy will be released as heat if the reaction is not coupled to a substrate,
b. The potential energy associated with the resulting ADP molecule increases.
c. The terminal phosphate is transferred to a substrate, lowering the potential energy of the substrate
d. Water is formed and released as a reaction product.
1. What are activation energy and substrate?
2. What is specificity and active site?
3. What are electrostatic interactions as well as enzyme-substrate complexes?
Chapter 7 Solutions
Biology (MindTap Course List)
Ch. 7.1 - Define energy, emphasizing how it is related to...Ch. 7.1 - Use examples to contrast potential energy and...Ch. 7.1 - Prob. 1CCh. 7.2 - Prob. 3LOCh. 7.2 - Prob. 1CCh. 7.2 - Life is sometimes described as a constant struggle...Ch. 7.3 - Prob. 4LOCh. 7.3 - Prob. 5LOCh. 7.3 - Prob. 6LOCh. 7.3 - Prob. 1C
Ch. 7.3 - Prob. 2CCh. 7.4 - Explain how the chemical structure of ATP allows...Ch. 7.4 - Prob. 1CCh. 7.4 - Prob. 2CCh. 7.5 - Relate the transfer of electrons (or hydrogen...Ch. 7.5 - PREDICT Which has the most energy, the oxidized...Ch. 7.6 - Explain how an enzyme lowers the required energy...Ch. 7.6 - Describe specific ways enzymes are regulated.Ch. 7.6 - Prob. 1CCh. 7.6 - How does the function of the active site of an...Ch. 7.6 - How are temperature and pH optima of an enzyme...Ch. 7.6 - Prob. 4CCh. 7 - Which of the following can do work in a cell? (a)...Ch. 7 - Prob. 2TYUCh. 7 - Prob. 3TYUCh. 7 - Test Your Understanding 4. Diffusion is an (a)...Ch. 7 - Prob. 5TYUCh. 7 - Prob. 6TYUCh. 7 - Prob. 7TYUCh. 7 - Test Your Understanding 8. Induced fit means that...Ch. 7 - Prob. 9TYUCh. 7 - Prob. 10TYUCh. 7 - PREDICT In the following reaction series, which...Ch. 7 - Test Your Understanding 12. EVOLUTION link All...Ch. 7 - EVOLUTION LINK Some have argued that evolution is...Ch. 7 - Prob. 14TYUCh. 7 - Prob. 15TYUCh. 7 - Prob. 16TYU
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- In 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_forwardI need help with a biology question, Choose the letter of the best match from the following: 1.The reactant on which the enzyme works A. Substrate, 2. Allosteric inhibibitor binds here; changes enzyme shape B. Non-catalytic binding site 3. spot on the enzyme where the reactant binds and is changed into product C. Active site 4. part of the complete enzyme complex; a non protein, organic component D. Coenzymearrow_forwardCan Please Help Me: Bio- Chemistry 60 minutes only the given time. Wish you could help me. I will give UPVOTE and GOOD FEEDBACK. QUESTION/// Suppose two enzymes in different reaction pathways have the same substrate but have different level of affinities to it. At low [S], how will you differentiate the activities of the 2 enzymes? ///QUESTIONarrow_forward
- “Induced fit” means that when a substrate binds to an enzyme’s active site, (a) it fits perfectly, like a key in a lock (b) the substrate and enzyme undergo conformational changes (c) a site other than the active site undergoes aconformational change (d) the substrate and the enzyme become irreversibly bound to each other (e) c and darrow_forward3. Inside the treasure chest, you find that whoever last left this treasure had discovered an amazing new enzyme that will revolutionize life as we know it. It’s clear from the diagram provided along with the vial that the enzyme converts a substrate (S) into a product (P), with a Ks of 5 mM. You decide to set up an experiment: you add the enzyme to an initial substrate concentration of 15 µM. You note that after 8 minutes the concentration of the substrate is halved. What is the rate constant k, the vmax and the product concentration after 14 minutes?arrow_forwardTest Your Understanding Know and Comprehend 7. In a redox reaction, (a) energy is transferred from a reducing agent to an oxidizing agent (b) a reducing agent becomes oxidized as it accepts an electron (c) an oxidizing agent accepts a proton (d) a reducing agent donates a proton (e) the electrons in an atom move from its valence shell to a shell closer to its nucleusarrow_forward
- Test Your Understanding Apply and Analyze 14. Consider the following reaction (in water): HCl H+ + Cl Name the reactant(s) and product(s). Does the expression indicate that the reaction is reversible? Could HCl be used as a buffer?arrow_forwardEssay: In your own words explain the following concept in not more than 5 sentences a. The lock and key model for enzyme activity b. Relationship of substrate and enzyme concentration to enzyme activity c. importance of blotting technology d. factors that can affect the donnan equilibriumarrow_forward1. Looking at the graph you should be able to explain every activity of every enzyme. Please describe each one of them. 1A: Why is Temperature and pH so important? When is an enzyme able to work properlyarrow_forward
- Briefly describe 1 way which enzyme activity can be regulated in the cell. How do the kinetics of a regulatory enzyme differ from a non-regulated enzyme?arrow_forward1-sketched a graph to show what I think the effect of temperature will be on the rate of reaction (the effect of temperature on enzyme activity) 2-describe in words what you predict the effect of temperature will be on the rate of reactionarrow_forward1 enzymes are a class of proteins that catalyze biochemical reaction.what are ribozymes? 2 what is the active side of an enzyme? 3 what is the proximity effect in catalysis? 4 what is the orientation effect in catalysis?arrow_forward
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