Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 6, Problem 6.4CC
Why do enzymes need to be regulated? By what different mechanisms can this regulation be achieved?
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Chapter 6 Solutions
Becker's World of the Cell (9th Edition)
Ch. 6 - Gasoline is highly combustible yet doesnt burst...Ch. 6 - How can an enzyme recognize and bind one specific...Ch. 6 - Prob. 1QCh. 6 - You work at a biotechnology company and are...Ch. 6 - Why do enzymes need to be regulated? By what...Ch. 6 - The Need for Enzymes. You should now be in a...Ch. 6 - Prob. 6.2PSCh. 6 - Prob. 6.3PSCh. 6 - Temperature and pH Effects. Figure 6-4 illustrates...Ch. 6 - MichaelisMenten Kinetics. Figure 6-16 represents a...
Ch. 6 - Prob. 6.6PSCh. 6 - QUANTITATIVE More Enzyme Kinetics. The galactose...Ch. 6 - QUANTITATIVE Turnover Number. Carbonic anhydrase...Ch. 6 - Inhibitors: Wrong Again. For each of the following...Ch. 6 - What Type of Inhibition? A new mucinase enzyme was...Ch. 6 - Prob. 6.11PSCh. 6 - Prob. 6.12PSCh. 6 - Prob. 6.13PS
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which type of enzyme regulation is best for the following situations?(a) An enzyme that becomes overactive during a disease(b) An enzyme needed only when there is low blood glucose(c) An enzyme that springs into action when a traumatic injury occurs(d) An enzyme needed only during adolescencearrow_forwardWhy is feedback inhibition important in the metabolic pathways?arrow_forwardWhat are the similarities and differences in the regulation of monomeric, single substrate and multimeric, multi-substrate enzymes?arrow_forward
- What are metabolic pathways catalyzed by? What are metabolic pathways determined by?arrow_forwardMany biosynthetic pathways are regulated by feedback control, where the product of a pathway turns off an enzyme that catalyzes an early step in the pathway. Usually, this control comes from an allosteric interaction. Of the types of reversible enzyme inhibition (Competitive inhibition, Noncompetitive inhibition, and Uncompetitive inhibition), what type is most likely to occur in a feedback control mechanism like this and why?arrow_forward3) Read the situations below and indicate which of the four methods of enzyme regulation is occurring for each. a) The energy-carrying molecule ATP is made by the enzyme ATP synthase. Muscle cells use a lot of energy and also have higher amounts of the ATP synthase enzyme than many other cell types. General mechanism of enzyme regulation: S b) Prostaglandins are messenger molecules involved in the inflammatory response, as well as the perception of pain. They are synthesized from polyunsaturated fatty acid substrates by an enzym called cyclo-oxygenase. "Ibuprofen" is the active ingredient in a variety of anti-inflammatory medications such as Motrin® and Advil®. It reduces pain and swelling by binding to a hydrophobic channel in the active site of cyclo-oxygenase, blocking the polyunsaturated fatty acids from binding to the enzyme, and therefore stopping production of prostaglandins. General mechanism of enzyme regulation:arrow_forward
- 1. Shown below is a metabolic pathway: Es E E4 E1 E2 A - B - C - D E3 E6 Q- R – S E7 Es Suppose we have too much of "S" in the cell, please answer the following questions, with regards to feedback inhibition: a) Which enzyme is most likely to be regulated? b) Which substance will act as the 'regulator'? c) Name the "site" where this 'regulator' will bind to the enzyme: d) Is this substance (from #b), a homotropic or heterotropic modulator?arrow_forwardWhat are enzymes? Describe briefly each class of enzyme according to its function. What are the factors that affect enzyme activity? How would you differentiate catalase from peroxidase?arrow_forwardMost enzymes are quite specific, catalyzing a particular reaction on a set of substrates that are structurally quite similar to one another. Why are highly specific enzymes advantageous from a biological perspective? They allow catalyzed reactions to produce potentially useful by-products. They allow for the sharing of enzymes by multiple metabolic pathways. They allow an inhibitor to simultaneously inhibit multiple steps in a metabolic pathway. They allow control of which reactions occur at appreciable rates. Why are most enzymes highly specific from a chemical perspective? Enzymes generally requires a tight fit between enzyme and substrate. Interactions between the enzyme and the substrate stabilize the substrate. The active sites of enzymes are always identical in shape to the substrates they bind. The formation of weak interactions between the enzyme and the substrate requires energy.arrow_forward
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