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 16TYU
Summary Introduction
To design: An experiment that will help to decide whether malonate is acting as a competitive inhibitor or a noncompetitive inhibitor.
Introduction: Enzymes are biological protein catalysts that alter the
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DESIGN YOUR ENZYME
AND SHOW THE REACTION!
To trap glucose in a cell, the following reaction is catalyzed by the HEXOKINASE enzyme:
GLUCOSE (G) + ATP -> GLUCOSE-6-Phosphate (G6P) + ADP
Diagram and label the steps in the catalytic cycle of this reaction in the presence of the hexokinase enzyme.
Show the steps of how the REACTANTS are converted to PRODUCTS (you can use shapes to represent the different molecules)
From what you know about the structure and polarity of the reactants, predict the amino acid R groups that might be in the ACTIVE SITE
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.
. MAKE CONNECTIONS Considering how enzymes function (see Concept 8.4), explain why vitamins are requiredin very small amounts.
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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Test Your Understanding 8. Induced fit means that when a substrate binds to an enzymes 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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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.
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Test Your Understanding 12. EVOLUTION link All organisms use ATP/ADP as central links between exergonic and endergonic reactions. What does that suggest about the evolution of energy metabolism?
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Test 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 nucleus
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13. Hydrolysis is the addition of water to ATP breaking the bonds of its phosphate group. What type of chemical reaction is hydrolysis?
A.Endergonic reaction C. Metabolic reaction
B.Exergonic reaction D. None of these
14. What happen during the ATP-ADP cycle?
A.ATP is synthesized from the chemical energy in glucose
B.ATP release energy, turning the molecule into ADP with lesser amount of energy
C. ATP are being constantly rebuilt from ADP and lone phosphate group to ensure continuous supply of energy
D. All of the above
15. Which of the following statement is TRUE about photosynthetic pigments?
A. Chlorophyll and carotenoids are the two major classes of photosynthetic pigments in plants and algae.
B.Chlorophyll a and chlorophyll b can be found on higher plants chloroplasts
C.Many photosynthetic organisms have a mixture of pigments
D. All of the above
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Can 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?
///QUESTION
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1-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 reaction
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Can 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. If high [S] is available, how will you describe the activities of the 2 enzymes?
///QUESTION
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Analysis:
1) Produce a bar graph that shows the effect of substrate concentration on the rate of reaction for amylase. Be sure to properly title your graph, label the axes, and provide a legend.
2) Describe the relationship between substrate concentration and rate of reaction. Predict what would happen if you used 20.0 g of substrate
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Using Model 10.9, draw the structure of the substrates of the pentose phosphate pathway and write down the enzymes and coenzymes that are involved in the reaction
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1) Describe the change of Cis-aconitate to Isocitrate.
2) Are enzymes changed during a reaction they catalyze?
3) What does "induced fit" mean when talking about enzymes
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Please help me identify these based on the model on the picture (even without explanation), thank you so much!1. What is metabolism?
2. What are the two types of metabolism?
3. Which metabolic reaction requires an input of energy?
4. Which metabolic reaction releases energy?
5. Which reaction yields a more complex molecule and is reductive?
6. Which reaction yields a simpler molecule and is oxidative?
7. What are the products of catabolism? Which part of the cell does this pathway take place?
8. What are the products of anabolism? Which part of the cell does this pathway take place?
9. Which reaction is divergent? Why?
10. Which reaction is convergent? Why?
11. How can you relate waterfalls to a mole of glucose?
12. What are the steps in catabolism?
13. What is the common pathway of the degraded complex molecules?
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