Homework Answers
The charge on amino acid in the active site of enzyme would be affected by pH.
In enzyme the amino acid carries either positive or negative charge.Positive and negative amino acids attract each other.By changing pH, the charge may change and attraction may chage also.
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The charge on amino acids in the active site of an enzyme would be affected by...
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...
6. The active site A. is located on an enzyme. B. is rich in amino acids....
6. The active site A. is located on an enzyme. B. is rich in amino acids. C. is located on a substrate. D. A. and B. E. B. and C. 9. Which of the following molecules is the oxidizing agent in cellular respiration? A. H2O B. Glucose C.O2 D. CO2 10. The substrate for glycolysis is A. Glucose. B. Acetyl-coA. C. Pyruvate D. NADH 12.Which of the following is a product of glycolysis? A. FADH2 B. CO2 C. GTP D....
Which amino acids in chymotrypsin are found in the active site and are participants in substrate...
Which amino acids in chymotrypsin are found in the active site and are participants in substrate cleavage? His, Ser, Asp His, Ser, Arg His, Ser Lys, Ser, Asp Where does cleavage of the peptide bond by chymotrypsin occur? On the C-terminal side of positively charged residues (lysine or). On the N-terminal side of aromatic residues (e.g. phonylalanine or tryprophase). On the C-terminal side of aromatic residues (e.g. phenylalanine or). All of the above When substrate concentration is much greater than...
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual...
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanisms. In general, active site microenvironments promote catalysis in which of the following ways? Choose one or more: o A. excluding excess water O B. providing salt bridges between the active site and the substrate in order to stabilize the interaction between the two O C. providing an optimized orientation of the substrate O D. decreasing the AG# of the reaction
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual...
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanisms. In general, active site microenvironments promote catalysis in which of the following ways? Choose one or more: O A. providing salt bridges between the active site and the substrate in order to stabilize the interaction between the two O B. providing an optimized orientation of the substrate O C. excluding excess water O D. decreasing the AG* of the reaction
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...
The active site of an enzyme ____. A. is remote form the site of substrate attachment...
The active site of an enzyme ____. A. is remote form the site of substrate attachment B. is converted to a product C. is the region where the reaction takes place D. increases the energy of reaction E. includes the entire enzyme In the lock-and-key model of enzyme actin, the enzyme active site is thought of as ___. A. a rigid, nonflexible shape that fits the substrate exactly B. an area of the enzyme that can adjust to fit the...
show work please the active site of this enzyme anu 28. A new protease which cleaves...
show work please
the active site of this enzyme anu 28. A new protease which cleaves the C-terminal amino acid from polypeptide chains and function, in part, by protonating the final peptide bond of the substrate. A pH study showed that drops sharply above pH 8.0 and Km rises sharply above PH 10.5. What amino acids might be present in the active site and what role(s) might they play?
1. Complete the following sentences Word bank: competitive, noncompetitive, allosteric site, oxaloacetate, active site, different from,...
1. Complete the following sentences Word bank: competitive, noncompetitive, allosteric site, oxaloacetate, active site, different from, similar to, succinate Oxaloacetate would be a reversible ______ inhibitor because the structure of oxaloacetate is ______ the structure of succinate, the substrate for the enzyme. As a _____ inhibitor, oxaloacetate would bind to the ______ of the enzyme. Increasing the concentration of _______, the substrate for the reaction, would reverse the effect of the _____ inhibitor. 2. Complete the following sentences The ______...
7. Using the active site shown below answer the following questions: The amino acids in the...
7. Using the active site shown below answer the following questions: The amino acids in the enzyme are shown in red, the substrate is shown in blue and the curved arrows are shown in black. H₂C NH OCH3 NH W44 7a. What is the role of W44 in this reaction step shown? (1 point) 7b. What is the role of D19 in the reaction step shown? (2 points) 7c. What is the role of H57 in the reaction step shown?...
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...
6. The active site A. is located on an enzyme. B. is rich in amino acids. C. is located on a substrate. D. A. and B. E. B. and C. 9. Which of the following molecules is the oxidizing agent in cellular respiration? A. H2O B. Glucose C.O2 D. CO2 10. The substrate for glycolysis is A. Glucose. B. Acetyl-coA. C. Pyruvate D. NADH 12.Which of the following is a product of glycolysis? A. FADH2 B. CO2 C. GTP D....
Which amino acids in chymotrypsin are found in the active site and are participants in substrate cleavage? His, Ser, Asp His, Ser, Arg His, Ser Lys, Ser, Asp Where does cleavage of the peptide bond by chymotrypsin occur? On the C-terminal side of positively charged residues (lysine or). On the N-terminal side of aromatic residues (e.g. phonylalanine or tryprophase). On the C-terminal side of aromatic residues (e.g. phenylalanine or). All of the above When substrate concentration is much greater than...
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanisms. In general, active site microenvironments promote catalysis in which of the following ways? Choose one or more: o A. excluding excess water O B. providing salt bridges between the active site and the substrate in order to stabilize the interaction between the two O C. providing an optimized orientation of the substrate O D. decreasing the AG# of the reaction
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanisms. In general, active site microenvironments promote catalysis in which of the following ways? Choose one or more: O A. providing salt bridges between the active site and the substrate in order to stabilize the interaction between the two O B. providing an optimized orientation of the substrate O C. excluding excess water O D. decreasing the AG* of the reaction
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...
The active site of an enzyme ____. A. is remote form the site of substrate attachment B. is converted to a product C. is the region where the reaction takes place D. increases the energy of reaction E. includes the entire enzyme In the lock-and-key model of enzyme actin, the enzyme active site is thought of as ___. A. a rigid, nonflexible shape that fits the substrate exactly B. an area of the enzyme that can adjust to fit the...
show work please
the active site of this enzyme anu 28. A new protease which cleaves the C-terminal amino acid from polypeptide chains and function, in part, by protonating the final peptide bond of the substrate. A pH study showed that drops sharply above pH 8.0 and Km rises sharply above PH 10.5. What amino acids might be present in the active site and what role(s) might they play?
7. Using the active site shown below answer the following questions: The amino acids in the enzyme are shown in red, the substrate is shown in blue and the curved arrows are shown in black. H₂C NH OCH3 NH W44 7a. What is the role of W44 in this reaction step shown? (1 point) 7b. What is the role of D19 in the reaction step shown? (2 points) 7c. What is the role of H57 in the reaction step shown?...
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