Homework Answers
B. By binding to a site other than the active site and causing conformational change in enzyme
- Allosteric regulator bind to site other than active site (they bind to allosteric site). This lead to conformational change in enzme.
- Only substrate and substance which are similar to substrate are able to bind at active site. In competitive inhibitor the inhibitor bind to active site and block the action of enzyme.
- There are no amino acid substitution in allosteric enzyme regulation
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2. How do allosteric regulators affect their target enzymes? o By binding to the enzyme's active...
1. Protein kinases phosphorylate target enzymes and as a result enzymes become activated or inactivated. Which...
1. Protein kinases phosphorylate target enzymes and as a result enzymes become activated or inactivated. Which of the statements are TRUE? (Multiple answers: You can select more than one option) A. Phosphorylated enzymes behave like competitive inhibitors B The presence of a phosphate acts as a non-competitive inhibitor/activator. No change in Km but significant change in Vmax C. The presence of a phosphate group induces a conformational change that modifies the affinity and catalytic ability of a target enzyme D....
How does the binding of a regulatory molecule to the allosteric site affect the activity of...
How does the binding of a regulatory molecule to the allosteric site affect the activity of an enzyme? Group of answer choices A. It may decrease the activity of the enzyme. B. It may change the shape of the substrate. C. It may change the affinity of the enzyme for its substrate. All of the above A and C
Which statement about enzyme catalysis is false? All of the active site amino acids are next...
Which statement about enzyme catalysis is false? All of the active site amino acids are next to each other in the primary sequence. Enzymes speed up reactions by forming specific non-covalent bonds between the enzyme amino acids and the transition state molecule. Some enzymes require other molecules, called cofactors, to carry out chemical reactions. Generally, the most important amino acids for an enzyme's function are those in the active site. Question 6 1 pt When [S] is much more than...
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...
Homework # 16: Enzymes Late assignment will be given a grade of "0. Due Date 1. An enzyme is primarily made out of a (hint what food group). catechol+ oxygen (0a) Catecholasepolyphenol 2. Loo...
Homework # 16: Enzymes Late assignment will be given a grade of "0. Due Date 1. An enzyme is primarily made out of a (hint what food group). catechol+ oxygen (0a) Catecholasepolyphenol 2. Looking at the equation above, the enzyme in this reaction is: 2. A. Catechol B. Oxygen C. Catecholase D. Polyphenol 3. Looking at the same equation as question 2, what is the substrate? A. Catechol B. Oxygen C. Catecholase D. Polyphenol What is the name of the...
1 2 3 4 5 6 7 8 9 Part A Which of the following is/are...
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Part A Which of the following is/are means whereby a catalyst can lower the activation energy of a reaction? quantum tunneling decreasing the number of reactive molecules permanently binding substrates inefficient collisions altering the temperature within the cell to one appropriate for reactions to proceed Subrnit Request Answer Part A An enzyme Obinds substrates in a manner that facilitates the formation of product decreases the rate of a reaction. is always...
no explaination is needed 28) Which of the following is true for all exergonic reactions? A)...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
Help on prelab NOTE! There are FOUR (4) pages in this pre-lab! PRE-LAB WORKSHEET FOR ENZYME...
Help on prelab
NOTE! There are FOUR (4) pages in this pre-lab! PRE-LAB WORKSHEET FOR ENZYME LAB To be completed prior to the online prelab esercise 1 ) Suppose that the diagram below represents what occurs during a chemical reaction e) Which letter points tq the prodact? print e ore , d 3) (c) Which letter points to the enzyme? (d) Which letter points to the enzyme's active site? (e) Which letter points to the enzyme's substrate? Note: Some letters...
biochemistry if you could please help me answer the following questions! * 1. (5 pts) Which...
biochemistry
if you could please help me answer the following questions!
* 1. (5 pts) Which of the following is a catalytic mechanism utilize by enzymes? Multiple answers may be correct. Select all that are correct. 1. Acid-base a) acid-base catalysis d. metal-ion catalysis 12. Covalent b covalent catalysis e. transition state binding c. heterogeneou 3. Metalion . Proximin onentation, E 2. 76 pts) What is the "steady-state" assumption in the derivation of the s.clectrosch? Tynsin Michaelis-Menten equation? Sie binding...
Energy in the from the sun, and store that enerngy as . Plants are able to captone chemical bonds...
check the answer plz
energy in the from the sun, and store that enerngy as . Plants are able to captone chemical bonds of glucose. a potential:potential kinetic the following is a funsction of cholesterol in the plasma nuidity of the membr passage of substances into and out of the cell d prodection of the membrane prokhryotic or eukaryotic? 9. If you found a iey cell under a microscope how could you determine if that cell was of a a....
Which statement about enzyme catalysis is false? All of the active site amino acids are next to each other in the primary sequence. Enzymes speed up reactions by forming specific non-covalent bonds between the enzyme amino acids and the transition state molecule. Some enzymes require other molecules, called cofactors, to carry out chemical reactions. Generally, the most important amino acids for an enzyme's function are those in the active site. Question 6 1 pt When [S] is much more than...
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...
Homework # 16: Enzymes Late assignment will be given a grade of "0. Due Date 1. An enzyme is primarily made out of a (hint what food group). catechol+ oxygen (0a) Catecholasepolyphenol 2. Looking at the equation above, the enzyme in this reaction is: 2. A. Catechol B. Oxygen C. Catecholase D. Polyphenol 3. Looking at the same equation as question 2, what is the substrate? A. Catechol B. Oxygen C. Catecholase D. Polyphenol What is the name of the...
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Part A Which of the following is/are means whereby a catalyst can lower the activation energy of a reaction? quantum tunneling decreasing the number of reactive molecules permanently binding substrates inefficient collisions altering the temperature within the cell to one appropriate for reactions to proceed Subrnit Request Answer Part A An enzyme Obinds substrates in a manner that facilitates the formation of product decreases the rate of a reaction. is always...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
Help on prelab
NOTE! There are FOUR (4) pages in this pre-lab! PRE-LAB WORKSHEET FOR ENZYME LAB To be completed prior to the online prelab esercise 1 ) Suppose that the diagram below represents what occurs during a chemical reaction e) Which letter points tq the prodact? print e ore , d 3) (c) Which letter points to the enzyme? (d) Which letter points to the enzyme's active site? (e) Which letter points to the enzyme's substrate? Note: Some letters...
biochemistry
if you could please help me answer the following questions!
* 1. (5 pts) Which of the following is a catalytic mechanism utilize by enzymes? Multiple answers may be correct. Select all that are correct. 1. Acid-base a) acid-base catalysis d. metal-ion catalysis 12. Covalent b covalent catalysis e. transition state binding c. heterogeneou 3. Metalion . Proximin onentation, E 2. 76 pts) What is the "steady-state" assumption in the derivation of the s.clectrosch? Tynsin Michaelis-Menten equation? Sie binding...
check the answer plz
energy in the from the sun, and store that enerngy as . Plants are able to captone chemical bonds of glucose. a potential:potential kinetic the following is a funsction of cholesterol in the plasma nuidity of the membr passage of substances into and out of the cell d prodection of the membrane prokhryotic or eukaryotic? 9. If you found a iey cell under a microscope how could you determine if that cell was of a a....
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