16.______consist of a group of insecticides that inactivate acetylcholinesterase. A.Anticestodals B.Antinematodals C.Adulticides D. Organophosphates
16.______consist of a group of insecticides that inactivate acetylcholinesterase. A.Anticestodals B.Antinematodals C.Adulticides D. Organophosphates
Homework Answers
Acetylcholinesterase is usually broken down into acetylcholine (acetic acid and choline) neurotransmitter. The main function of this acetylcholine is to sends out signals to other nerve endings in the body. It is found in humans nervous tissue, skeletal muscle and RBC (red blood corpuscles) cell membrane.
Insecticides are used mainly in farm and agriculture to kill insects and because of the overuse of such insecticides it have a significant alteration in ecosystem and also toxic to humans and animals.
ANSWER: D (Organophosphates)
A. Anticestodals drugs are used to treat tapeworm or spread of inflammatory diseases in human beings. It will not inactivate acetylcholinesterase function.
B. Antirematodals are used to treat liver flukes in cattles. So, it is not an insecticide and will not inactivate acetylcholinesterase function.
C. Adulticide is a spray used to control adult mosquitoes. It is a natural product and is safe to use to the general population and to the environment. It will not have any harmful effects on humans.
D. Organophosphates is a insecticide agent which can have harmful effects in human being when highly exposed to such agents. It inhibits the function of neuromuscular enzyme and also disrupts the function of brain sending out the signals to the other nerve endings. So, this insecticide inactivate the acetylcholinesterase action.
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16.______consist of a group of insecticides that inactivate
acetylcholinesterase. A.Anticestodals B.Antinematodals
C.Adulticides D. Organophosphates
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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...
3) (10 marks) Acetylcholinesterase catalyzes the hydrolysis of the neurotransmitter acetylcholine: Acetylcholine + H2O → acetate...
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just part A
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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...
3) (10 marks) Acetylcholinesterase catalyzes the hydrolysis of the neurotransmitter acetylcholine: Acetylcholine + H2O → acetate + choline The Km of acetylcholinesterase for its substrate acetylcholine is 9.5x10-5M. In a reaction mixture contain 5 nanomoles/mL of acetylcholinesterase and 150uM acetylcholine, a velocity Ve=40umol/mLsec was observed for the acetylcholinesterase reaction. a. Calculate Vmax for this amount of enzyme b. Calculate kcat for acetylcholinesterase Calculate the catalytic efficiency (kcat/Km) for acetylcholinesterase d. Does acetylcholinesterase approach catalytic perfection? e. What determines the ultimate...
4) Antibodies can inactivate by directly binding to them, but to harm an intact bacterial cell, antibodies bound to antigens on the cell must trigger the action of A) MHC proteins: macrophages B) APC's the complement system c) bacterial toxins; the complement system D) virally infected cells interferans E) viruses, MHC proteins
just part A
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