Pralidoxime can reactivate cholinesterase enzyme
that has been inactivated by:
A. Carbamate anticholinesterases
B. Organophosphate anticholinesterases
C. Both carbamate and organophosphate anticholinesterases
D. Reversible anticholinesterases

1 Answer

Answer :

B. Organophosphate anticholinesterases

Related questions

Description : Pralidoxime can reactivate cholinesterase enzyme that has been inactivated by: A. Carbamate anticholinesterases B. Organophosphate anticholinesterases C. Both carbamate and organophosphate anticholinesterases D. Reversible anticholinesterases

Last Answer : B. Organophosphate anticholinesterases

Description : Which is the most important drug in the treatment of organophosphate poisoning: A. Atropine sulfate B. Pralidoxime C. Diazepam D. Adrenaline

Last Answer : A. Atropine sulfate

Description : Which is the most important drug in the treatment of organophosphate poisoning: A. Atropine sulfate B. Pralidoxime C. Diazepam D. Adrenaline

Last Answer : A. Atropine sulfate

Description : The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind ... degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Last Answer : B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules

Description : Out of two anticholinesterases, drug X' is a tertiary amine while drug Y' is a quarternary ammonium compound. Then: A. Drug X' is likely to be more potent than Y' B. Drug X' will be more ... a miotic C. Drug Y' will be completely metabolized in the body D. Drug Y' will produce CNS effects

Last Answer : B. Drug ‘X’ will be more suitable to be used as a miotic

Description : After chronic systemic therapy, withdrawal of corticosteroids should be gradual because: A. Corticosteroids produce psychological dependence B. Abrupt withdrawal may reactivate the underlying disease C. Abrupt withdrawal produces rebound hypertension D. All of the above are correct

Last Answer : B. Abrupt withdrawal may reactivate the underlying disea

Description : Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction. (A) Catalytic (B) Exothermic (C) Endothermic (D) Reversible

Last Answer : (B) Exothermic

Description : Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction. (A) Reversible (B) Catalytic (C) Exothermic (D) Endothermic

Last Answer : (D) Endothermic

Description : Bisphosphonates are indicated in the following condition: A. Organophosphate poisoning B. Dementia C. Steven’s Johnson syndrome D. Osteoporosis

Last Answer : D. Osteoporosis

Description : What are Killed (inactivated) vaccines?

Last Answer : When safe live vaccines are not available, either because attenuated strains have not been developed or else because reversion to wild type occurs too readily, it may be possible to use an ... site. However, the same disadvantages of poor immunogenicity and the need for multiple boosters apply. 

Description : Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive ... inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Last Answer : B. Only anaerobes reduce it to generate the reactive nitro radical

Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents ... the microbes of the normal gut flora D. It is a potent tetracycline and inhibits

Last Answer : A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low

Description : yocardial Na+ channel blockade by lignocaine has the following characteristic: A. It blocks inactivated Na+ channels more than activated channels B. It blocks activated Na+ channels more than inactivated ... Na+ channels D. It produces more prominent blockade of atrial than ventricular Na+ channels

Last Answer : A. It blocks inactivated Na+ channels more than activated channels

Description : Following enzyme is involved in the synthesis of actylcholine (a) Choline acetyl transferase (b) Acetyl cholinesterase (c) Both (a) and (b) (d) None of the above

Last Answer : Ans: A

Description : Platelets contain an enzyme which has important role in clotting in blood. This enzyme is known as (A) Cholinesterase (B) Transaminase (C) Decarboxylase (D) Thrombokinase

Last Answer : Answer : D

Description : Reactivation of cholinesterase enzyme occurs on hydrolysis of the inhibitor by the same enzyme molecule in case of the following anticholinesterase: A. Edrophonium B. Neostigmine C. Dyflos D. Tacrine

Last Answer : B. Neostigmine

Description : The following inhibitor binds only to the ani-onic site of the cholinesterase enzyme: A. Neostigmine B. Physostigmine C. Edrophonium D. Dyflos

Last Answer : C. Edrophonium

Description : The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind ... degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Last Answer : B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules

Description : Reactivation of cholinesterase enzyme occurs on hydrolysis of the inhibitor by the same enzyme molecule in case of the following anticholinesterase: A. Edrophonium B. Neostigmine C. Dyflos D. Tacrine

Last Answer : B. Neostigmine

Description : The following inhibitor binds only to the ani-onic site of the cholinesterase enzyme: A. Neostigmine B. Physostigmine C. Edrophonium D. Dyflos

Last Answer : C. Edrophonium

Description : Zymogen is (A) An intracellular enzyme (B) Serum enzyme (C) A complete extracellular enzyme (D) An inactivated enzyme

Last Answer : Answer : D

Description : If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.

Last Answer : (a) fixation of nitrogen in legumes

Description : Below freezing point an enzyme is (a) Inactivated (b) Activated (c) Destroyed (d) Unaffected

Last Answer : (a) Inactivated

Description : Out of two anticholinesterases, drug X' is a tertiary amine while drug Y' is a quarternary ammonium compound. Then: A. Drug X' is likely to be more potent than Y' B. Drug X' will be more ... a miotic C. Drug Y' will be completely metabolized in the body D. Drug Y' will produce CNS effects

Last Answer : B. Drug ‘X’ will be more suitable to be used as a miotic

Description : Choose the correct statement about moclobemide: A. It is a reversible inhibitor of MAO-A with short duration of action B. Patients taking it need to be cautioned not to consume tyramine rich food C. It is contraindicated in elderly patients D. It produces anticholinergic side effect

Last Answer : A. It is a reversible inhibitor of MAO-A with short duration of action

Description : The following is a reversible and selective MAO-A inhibitor: A. Bupropion B. Entacapone C. Moclobemide D. Selegiline

Last Answer : C. Moclobemide

Description : n the treatment of hyperthyroidism, carbimazole has the following advantage over radioactive iodine: A. Cost of treatment is lower B. It is preferable in uncooperative patient C. It is better tolerated by the patients D. Hypothyroidism when induced is reversible

Last Answer : Hypothyroidism when induced is reversible

Description : Can a hacker reactivate your Facebook account?

Last Answer : If “hackers” actually do anything more than serve as a scapegoat for media technophobia, I’d imagine that they certainly have better things to do with their time than reactivate old Facebook accounts.

Description : How Reactivate my I am account?

Last Answer : How to restore an imvu account

Description : How Reactivate my I am account?

Last Answer : How to restore an imvu account

Description : Broad spectrum anthelmintics include D A. Benzimidazoles B. Triclabendazole C. Organophosphate D. Both a and b

Last Answer : Both a and b

Description : Herbicides of which group are generally incorporated in soil? a). Carbamate b). Dinitroaniline c). Triazine d). Both a and b

Last Answer : d). Both a and b

Description : Anti-cestodal drugs include A A. Niclosamide B. Organophosphate C. Levamisole D. None

Last Answer : Niclosamide

Description : Narrow spectrum anthelmintics include D A. Organophosphate B. Triclabendazole C. Benzimidazole D. None

Last Answer : None

Description : Biological control component is central to advanced agricultural production. Which of the following is used as a third generation pesticide? (a) Insect repellants (b) Organophosphate and carbamates (c) Pathogens (d) Pheromones

Last Answer : (d) Pheromones

Description : First bioinsecticide developed commercial scale was (a) quinine (b) DDT (c) organophosphate (d) sporeine

Last Answer : (d) sporeine

Description : Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Last Answer : c. Carbofuran

Description : Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Last Answer : c. Carbofuran

Description : Leishmania donovani is susceptible to certain antifungal drugs because both fungi and Leishmania: A. Utilise purine salvage pathway B. Utilise similar glycolytic mechanisms C. Have similar topoisomerase II enzyme D. Have ergosterol in their cell membranes

Last Answer : D. Have ergosterol in their cell membranes

Description : The high virus selectivity of acyclovir is due to: A. Its preferential uptake by virus infected cells B. Need of virus specific enzyme for its conversion to the active metabolite C. Its action on ... reverse transcriptase which does not occur in noninfected cells D. Both A' and B' are correct

Last Answer : D. Both ‘A’ and ‘B’ are correct

Description : Indicate the enzyme(s) inhibited by fluoroquinolones: A. Both 'A' and 'C' B. Topoisomerase II C. Topoisomerase IV D. DNA gyrase

Last Answer : D. DNA gyrase

Description : __________ is the undesirable by-product produced in the manufacture of urea. (A) Ammonium carbonate (B) Biuret (C) Carbon dioxide (D) Ammonium carbamate

Last Answer : (B) Biuret

Description : Dehydration of ammonium carbamate to yield urea is a/an __________ reaction. (A) Exothermic (B) Endothermic (C) Autocatalytic (D) Catalytic

Last Answer : (B) Endothermic

Description : Pick out the wrong statement. (A) Dehydration of ammonium carbamate to produce urea is endothermic (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India ... manufacture of ortho-phosphoric acid (D) Phosphate rock when reacted with dilute H2SO4 produces superphosphate

Last Answer : (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable

Description : Dehydration of ammonium carbamate produces (A) Urea (B) Biuret (C) Ammonia water (D) None of these

Last Answer : (A) Urea

Description : In the manufacture of urea, the intermediate chemical formed is (A) Biuret (B) Ammonium carbamate (C) Ammonium carbonate (D) None of these

Last Answer : (B) Ammonium carbamat

Description : During conversion of ammonium carbamate into urea, presence of large excess of water (A) Increases the yield of urea (B) Adversely affects the yield of urea (C) Reduces the evaporator load by diluting the urea solution (D) Does not affect the yield of urea

Last Answer : (B) Adversely affects the yield of urea

Description : With increases in pressure, the conversion of Ammonium carbamate into urea (A) Increases (B) Decreases (C) Remains unaltered (D) Can either increase or decrease depends on biuret content

Last Answer : (A) Increases

Description : Besides NA and R 25788, other safeners to counteract the effect of carbamate herbi cide is a). CGA 43089 b). CGA 92194 c). Mon 4606 d). All of these

Last Answer : d). All of these

Description : Which herbicide group is photosynthesis inhibitor? a). Nitriles b). Carbamate c). Dicarboxylic acid d). Dinitroanilines

Last Answer : a). Nitriles