Mode of action of isoproturon
a). PSII inhibition
b). ACCase inhibition
c). Glutamine synthatase inhibition
d). Cell division inhibition

1 Answer

Answer :

a). PSII inhibition

Related questions

Description : The mode of action of Isoproturon is a). Root inhibitor b). Shoot inhibitor c). Photosynthesis inhibition d). Amino acid inhibition

Last Answer : c). Photosynthesis inhibition

Description : Paraquat is associated with inhibition of which of the following a). PSI b). PSII c). PPO d). HPPD

Last Answer : a). PSI

Description : The mode of action of paraquat is a). Amino acid synthesis inhibition b). Pigment inhibition c). Cell membrane disruption d). Shoot inhibition

Last Answer : c). Cell membrane disruption

Description : The mode of action of Atrazine is a). Pigment inhibition b). Cell membrane disruption c). Seedling growth inhibition d). Photosynthesis inhibition

Last Answer : d). Photosynthesis inhibition

Description : Which herbicide’s mode of action is root growth inhibition? a). Fluchloralin b). MCPA c). Glyphosate d). Alachlor

Last Answer : d). Alachlor

Description : What is the mode of action of diclofop a). Root inhibition b). Shoot inhibition c). lipid inhibition d). Photosynthesis inhibition

Last Answer : c). lipid inhibition

Description : Sulfonylurea herbicides inhibits a). ALS b). EPSP synthase c). PSI d). PSII

Last Answer : a). ALS

Description : To manage grassy weed flora in barley which of the herbicides is to be applied a). Pendimethalin b). Isoproturon c). a and b d). Metsulfuron

Last Answer : c). a and b

Description : To manage mixed weed flora in barley which of the herbicides is to be applied a).2,4-D b). Isoproturon c). a and b as tank mix d). None of these

Last Answer : c). a and b as tank mix

Description : A herbicide requiring good spray coverage of all foliage for effective control of a weed population a).Paraquat b). Glyphosate c). Atrazine d). Isoproturon

Last Answer : a).Paraquat

Description : Isoproturon to wheat is effective at a). 15 DAS b). 25-30 DAS c). 45- DAS d). 5 DAS

Last Answer : b). 25-30 DAS

Description : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine d). Both a and b

Last Answer : d). Both a and b

Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these

Last Answer : d). All of these

Description : Besides isoproturon resistance in P. minor, other cases of herbicide resis tance reported in India are a). Poa annua b). Brachiaria ramosa c). Commelina sp d). None of the above

Last Answer : d). None of the above

Description : Herbicidal control for isoproturon resis tance Phalaris minor in wheat a). Sulfosulfuron 25 g/ha b). Clodinafop-propargyl 60 g/ha c). Penoxaden 50 g/ha d). All

Last Answer : d). All

Description : Phalaris minor has developed resistance to isoproturon in Punjab and Haryana in a). Rice b). Wheat c). Sugarcane d). Cotton

Last Answer : b). Wheat

Description : The effective control of morphological similar Phalaris minor in wheat is achieved with a). 2,4-D b). Glyphosate c). Metsulfuron - methyl d). Isoproturon

Last Answer : d). Isoproturon

Description : Inhibition of electron transfer in photosys tem II is the reason for herbicide action in a). Nitriles b). Ureas c). Both a and b d). None

Last Answer : d). None

Description : The mode of action of thiocarbonates is a). Lipid inhibitor b). Cell membrane dispruption c). Pigment inhibitor d). Shoot inhibitor

Last Answer : d). Shoot inhibitor

Description : Which herbicide mode of action is pigment inhibitor? a). MCPA b). Fluchloralin c). Chlomazone d). 2,4-D

Last Answer : c). Chlomazone

Description : The mode of action of dinitroanilines a). Shoot growth inhibitor b). Lipid inhibitor c). Root growth inhibitor d). Amino acid inhibitor

Last Answer : c). Root growth inhibitor

Description : What is the mode of action of sulfonamide herbicide a). Amino acid synthesis inhibitor b). Photosynthesis inhibitor c). Lipid inhibitor d). Pigment inhibitor

Last Answer : a). Amino acid synthesis inhibitor

Description : Which of the safeners counteract inhibition of synthesis of very long chain fatty acids in rice by pretilachlor and metolachlor a). Fenclorim b). Benoxacor c). Fluxofenim d). All

Last Answer : d). All

Description : The additional cost from taking a cost of action is called a). Total cost b). Opportunity cost c). Variable cost d). Marginal cost

Last Answer : d). Marginal cost

Description : From site of uptake to site of action, fluazi fop-butyl move in a). water conducting stream b). sap conducting stream c). Both d). None

Last Answer : c). Both

Description : Marginal cost refers to a). Additional cost from taking a course of action b). Increase in cost accompanies a unit increase in output c). Cost of producing one more unit of a good d). All

Last Answer : d). All

Description : How many modes of action commer cialized between 1970 and 1985 a).6 b).9 c).10 d).12

Last Answer : d).12

Description : Herbicide Resistance can be managed through a). Stop to Use of herbicides with the same mechanism of action b). Use proactive weed control c). Use of post emergence herbicides with at least one mechanism of action d). All of the above

Last Answer : d). All of the above

Description : Multiple resistance is the phenomenon in which a weed is resistant to two or more herbicides having a). same mechanisms of action b). different mechanisms of action c). same chemistry d). different chemistry

Last Answer : b). different mechanisms of action

Description : An ingredient added to a formulation for enhancing the action of toxicant is called a). Adsorbent b). Adjuvant c). Antidote d). Active ingredient

Last Answer : b). Adjuvant

Description : Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is ... and (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)

Last Answer : (a) (ii) and (iv)

Description : Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Last Answer : B. Alteration of bacterial cell membrane permeability

Description : Omeprazole exerts practically no other action except inhibition of gastric acid secretion because: A. It transforms into the active cationic forms only in the acidic pH of the gastric juice B. Its ... forms are unable to diffuse out from the gastric parietal cell canaliculi D. All of the above

Last Answer : D. All of the above

Description : Buffering action of haemoglobin is mainly due to its (A) Glutamine residues (B) Arginine residues (C) Histidine residues (D) Lysine residues

Last Answer : Answer : C

Description : A cell membrane disrupter a).Paraquat b). Acifluorfen c). Difenzoquat d). All

Last Answer : d). All

Description : Herbicides disrupting cell membranes a). Bipyridilliums b). diphenylethers c). Both d). Ureas

Last Answer : c). Both

Description : Goal is trade name of — weedicide. a. Isoproturon b. Propanil c. Paraquat d. oxyfluorfen

Last Answer : d. oxyfluorfen

Description : What mode of cell division sperm cells to be formed in the haploid male bee?

Last Answer : Need answer

Description : The most common mode of cell division in bacteria is a. Binary fission b. Transverse binary fission c. Longitudinal binary fission d. None of these

Last Answer : Ans: C

Description : The blood sugar raising action of the hormone of suprarenal cortex is due to (A) Glyconeogenesis (B) Glycogenolysis (C) Glucagon like activity (D) due to inhibition of glomerular filtration of glucose

Last Answer : Answer : A

Description : An example of feedback inhibition is (A) Allosteric inhibition of hexokinase by glucose6-phosphate (B) Cyanide action on cytochrome (C) Sulpha drug on folic acid synthesizer bacteria (D) Reaction between succinic dehydrogenase and succinic acid

Last Answer : Answer : A

Description : Feedback inhibition of enzyme action is affected by (A) Enzyme (B) Substrate (C) End products (D) None of these

Last Answer : Answer : C

Description : In competitive inhibition of enzyme action (A) The apparent Km is decreased (B) The apparent Km is increased (C) Vmax is decreased (D) Apparent concentration of enzyme molecules decreased

Last Answer : Answer : B

Description : The blood sugar raising action of the hormones of suprarenal cortex is due to (A) Gluconeogenesis (B) Glycogenolysis (C) Glucagon-like activity (D) Due to inhibition of glomerular filtration

Last Answer : A

Description : Mini-dose heparin has been shown to be useful in the prophylaxis of postoperative venous thrombosis. Mechanism(s) by which low-dose heparin is/are thought to protect against venous ... aggregation and subsequent platelet release action d. A mild prolongation of activated partial thromboplastin time

Last Answer : Answer: a, b, c Low-dose heparin is thought to protect against venous thrombosis through three different mechanisms. First, antithrombin III activity with its inhibition of activated Factor X is ... release reaction. The standard doses of heparin administered (5000 units bid) does not affect aPTT

Description : Methylxanthines exert the following action (s) at cellular/molecular level (a) Intracellular release of Ca2+ (b) Antagonism of adenosine (c) Inhibition of phosphodiesterase (d) All of the above

Last Answer : Ans: D

Description : The mechanism of action of cyclosporine involves (a) Activation of calcineurin (b) Binding to cyclophilin to cause inhibition of a cytoplasmic phosphatase (c) Blockade of interleukin – 2- receptors (d) Inhibition of phospholipase A2 (e) Suppression of bone marrow progenitors

Last Answer : Ans: B

Description : The termination of heparin activity by protamine sulfate is due to (a) A chelating action (b) The inhibition of gastrointestinal absorption of heparin (c) The displacement of heparin-plasma protein binding (d) An acid-base interaction (e) The prothrombin-like activity of protamine

Last Answer : Ans: D

Description : The mechanism of antibacterial action of tetracycline involves (a) Binding to a component of the 50S ribosomal subunit (b) Inhibition of translocase activity (c) Blockade of binding of ... (d) Selective inhibition of ribosomal peptidyl transferases (e) Inhibition of DNA-dependent RNA polymerase

Last Answer : Ans: C

Description : Select the option which is not correct with respect to enzyme action. (a) Substrate binds with enzyme at its active site. (b) Addition of lot of succinate does not reverse the inhibition ... from that which binds the substrate. (d) Malonate is a competitive inhibitor of succinic dehydrogenase.

Last Answer : (b) Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate.