Homework Answers
1. (c) reversible inhibitors
2. (d) suicide inhibitor
3. (a) bind to the active site
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Chapter 8. Enzyme Regulation and Inhibition 1. Competitive inhibitors are always of which type? a) allosteric...
enzyme has a molar mass of 30 kilodatons. From this information, calculate Keat for this enzyme-catalyzed...
enzyme has a molar mass of 30 kilodatons. From this information, calculate Keat for this enzyme-catalyzed reaction both with and without inhibitor. Also explain from the data given on the graph which type of enzyme inhibition any is curring Series 1 - no inhibitor. Series 2 inhibitor present • Seriesi Series2 Linear (Series1) Linear (Series2) Chapter 8. Enzyme Regulation and Inhibition 1. Competitive inhibitors are always of which type? a) allosteric b) irreversible c) reversible d) suicide 2. DIFP is:...
Classify these specific inhibitors or inhibitor characteristics according to one of three types of inhibition: reversible...
Classify these specific inhibitors or inhibitor characteristics according to one of three types of inhibition: reversible competitive, reversible noncompetitive, or irreversible. Reversible competitive Reversible noncompetitive Irreversible sulfanilamide inhibits bacterial growth inhibitor binds noncovalently at site other than active site inhibitor binds covalently at active site inhibitor structure resembles substrate structure Answer Bank inhibitor binds noncovalently at active site mercury poisons an enzyme
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with...
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with substrate binding or catalysis are inhibitors. Identify the type of inhibition associated with each of the descriptions and examples by classifying each statement as irreversible, competitive, or mixed inhibition. Irreversible inhibition Competitive inhibition Mixed inhibition Answer Bank the Al ion binds to acetylcholinesterase or to the acetylcholinesterase-substrate complex malonate, which resembles succinate, binds to the succinate dehydrogenase active site inhibitor may permanently modify an...
A. Choose anly one correcet answer for each of the following questions (4 pts cach). AL Some and ...
A. Choose anly one correcet answer for each of the following questions (4 pts cach). AL Some and KM values are shown below for enzyme-substrate pairs. Which of the following enzymes is most efficient in converting the substrate into the product? b) kes.-4x10s s", KM-0.026 M d)k,,-5.7 x1o's", K-2x10s M c)人at-900 s", KM-2.5 × 10.5 M A2. Which of the following enzyme reaction mechanisms has multiple substrates? a) induced-fit e) Michaclis-Menton b) random sequential d) reversible covalent modification e) None...
6) For the following statements concerning inhibition, use the answers (1 pts each) A) competitiv...
chem 103: biochem
need help with answering these questions!!!
6) For the following statements concerning inhibition, use the answers (1 pts each) A) competitive inhibition B) non-competitive C) irreversible and D) not an inhibition a) Which inhibition can be reversed by adding an excess of the substrate? b) In which inhibition does the inhibitor resemble the substrate? c) Inhibitor binds to enzyme at different site than substrate, but it can be removed. d) An example is ethanol as an antidote...
56. In the lock and key model of substrate binding to enzymes Pprat wnich they work...
56. In the lock and key model of substrate binding to enzymes Pprat wnich they work best a the substrate changes its conformation to fit the active site b. the active site changes its conformation to fit the substrate c. the active site is rigid and the substrate must fit exactly d. the substrate binds only to part of the active site In the induced-fit model of substrate binding a. 57. the substrate changes its conformation to fit the active...
Reset Help noncompetitive enzyme irreversible acetylcholinesterase competitive active site 1. A inhibitor binds to a site...
Reset Help noncompetitive enzyme irreversible acetylcholinesterase competitive active site 1. A inhibitor binds to a site on the enzyme that is not the active site. 2. Insecticides and nerve gases act as irreversible inhibitors of nerve conduction. an enzyme needed for 3. A inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate. 4. Usually, an nhibitor forms a covalent bond with an amino acid side group within...
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with...
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with substrate binding or catalysis are inhibitors. Identify the type of inhibition associated with each of the following descriptions and examples by sorting each item into the appropriate bin. The bins are: irriversible inhibition, compenitive inhibition, mixed inhibition The phrases to sort are: -Tamiflu, a transition state analog, reversibly binds to neuraminidase - Inhibitor may perminantely modify an enzyme -DIPF permanently modifies the hydroxyl group...
Which of the following can bind to an enzyme at its active site? Select one: a....
Which of the following can bind to an enzyme at its active site? Select one: a. more than one correct response b. irreversible inhibitor c. reversible competitive inhibitor d. reversible noncompetitive inhibitor
A particular protein-cased enzyme is always produced in the cell. What types of regulation do you...
A particular protein-cased enzyme is always produced in the cell. What types of regulation do you have to consider? The regulations that are considered are phosphorylation, zymogenic, competitive and noncompetitive inhibition, positive allosteric regulation, and irreversible inhibition.
enzyme has a molar mass of 30 kilodatons. From this information, calculate Keat for this enzyme-catalyzed reaction both with and without inhibitor. Also explain from the data given on the graph which type of enzyme inhibition any is curring Series 1 - no inhibitor. Series 2 inhibitor present • Seriesi Series2 Linear (Series1) Linear (Series2) Chapter 8. Enzyme Regulation and Inhibition 1. Competitive inhibitors are always of which type? a) allosteric b) irreversible c) reversible d) suicide 2. DIFP is:...
Classify these specific inhibitors or inhibitor characteristics according to one of three types of inhibition: reversible competitive, reversible noncompetitive, or irreversible. Reversible competitive Reversible noncompetitive Irreversible sulfanilamide inhibits bacterial growth inhibitor binds noncovalently at site other than active site inhibitor binds covalently at active site inhibitor structure resembles substrate structure Answer Bank inhibitor binds noncovalently at active site mercury poisons an enzyme
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with substrate binding or catalysis are inhibitors. Identify the type of inhibition associated with each of the descriptions and examples by classifying each statement as irreversible, competitive, or mixed inhibition. Irreversible inhibition Competitive inhibition Mixed inhibition Answer Bank the Al ion binds to acetylcholinesterase or to the acetylcholinesterase-substrate complex malonate, which resembles succinate, binds to the succinate dehydrogenase active site inhibitor may permanently modify an...
A. Choose anly one correcet answer for each of the following questions (4 pts cach). AL Some and KM values are shown below for enzyme-substrate pairs. Which of the following enzymes is most efficient in converting the substrate into the product? b) kes.-4x10s s", KM-0.026 M d)k,,-5.7 x1o's", K-2x10s M c)人at-900 s", KM-2.5 × 10.5 M A2. Which of the following enzyme reaction mechanisms has multiple substrates? a) induced-fit e) Michaclis-Menton b) random sequential d) reversible covalent modification e) None...
chem 103: biochem
need help with answering these questions!!!
6) For the following statements concerning inhibition, use the answers (1 pts each) A) competitive inhibition B) non-competitive C) irreversible and D) not an inhibition a) Which inhibition can be reversed by adding an excess of the substrate? b) In which inhibition does the inhibitor resemble the substrate? c) Inhibitor binds to enzyme at different site than substrate, but it can be removed. d) An example is ethanol as an antidote...
56. In the lock and key model of substrate binding to enzymes Pprat wnich they work best a the substrate changes its conformation to fit the active site b. the active site changes its conformation to fit the substrate c. the active site is rigid and the substrate must fit exactly d. the substrate binds only to part of the active site In the induced-fit model of substrate binding a. 57. the substrate changes its conformation to fit the active...
Reset Help noncompetitive enzyme irreversible acetylcholinesterase competitive active site 1. A inhibitor binds to a site on the enzyme that is not the active site. 2. Insecticides and nerve gases act as irreversible inhibitors of nerve conduction. an enzyme needed for 3. A inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate. 4. Usually, an nhibitor forms a covalent bond with an amino acid side group within...
Which of the following can bind to an enzyme at its active site? Select one: a. more than one correct response b. irreversible inhibitor c. reversible competitive inhibitor d. reversible noncompetitive inhibitor
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