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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“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 d
Solve it and give reason for your answer
C)|Myth: The specificity of an enzyme for its substrate is explained by the lock and key hypothesis. Fact: The
lock and key hypothesis is outdated! What is our current model for understanding regarding how enzymes
recognize and bind to substrates?
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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- 5. Enzymes are incredibly effective at facilitating chemical reactions and must be controlled- or the chemical reaction won't stop and the reactant(s) might be used up. (A) Use 3 different colors to color the coding circles and corresponding structures in the figures. (B) Draw an arrow pointing to the active site in each figure. (C) Beneath each diagram, write the type of inhibition and briefly, in your own words, explain what is happening. PG al JartW Mool bluow nolsoeen er edw gni nobisvitae ert wori gniworla en qsp/ru to can't S uid can't weib (A) wole Ts w.bind b (8) bris bobl ewm bind oll omysne erlf yd beoue o.gons O Enzyme O Reactant (substrate) O Inhibitor Enzyme Enzyme Type of inhibition: Type of inhibition:arrow_forward1arrow_forwardA) Myth: Enzymes are specific for one substrate. Fact: Like most enzymes, alliinase can act on multiple different substrates. Explain why most enzymes can act on more than one substrate compound. (Refer to the “Alliin-like Substrates" panel in your answer.)arrow_forward
- In vitro conditions the enzyme is used in catalytic amounts (10-12 to 10-8M). Estimate the amount of enzyme in living cell. Assuming (a) fresh tissue is 80% water and intracellular (b) total soluble protein in cell represents 15% of wet weight (c) all soluble proteins are enzymes (d) average molecular weight of protein is 150,000 (e) about 1000 different enzymes are present.arrow_forwardTemperature and enzymatic activity Grade 9 students posed the following question: "What is the convenient temperature for the activity of an enzyme?" For this reason, they realized the experiment described below: -They put the same quantity of cooked starch in each of the two test tubes A and B. -They added a small quantity of fresh saliva to each of the two tubes. -Then, they placed both tubes for a convenient duration at different temperatures: •Tube A in ice where the temperature is 0°C Tube B in a water bath where the temperature is 37°C. N.B.: Saliva contains an enzyme: amylase. •The chemical medium is neutral in both tubes A and B. By using an appropriate technique, these students obtained the results shown in the opposite document. 1- Represent, in the same table, the variation of the quantities of cooked starch in the tubes A and B in function of time. 2- Pick out the posed problem by grade 9 students. 3- Analyze the obtained results. What do you conclude? Quantity of cooked…arrow_forward(a) Lock and key model versus induced fit model of enzyme activity. (b) Competitive and non-competitive enzyme inhibitors. (c) Reversible and irreversible enzyme inhibitors.arrow_forward
- 12 Two inhibitors of the same enzyme, inhibitor A and inhibitor B, were investigated to discover if they were competitive or non- order to do this, the rate of reaction of the enzyme was measured at different concentrations of substrate without inhibitor, with inhibitor A and with inhibitor B. Graphs of the data were plotted as shown. The graphs showed that one inhibitor was competitive and the other non-competitive. on-competitive. Inarrow_forwardSolve all part please.arrow_forwardCan someone help me pleasearrow_forward
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