Whichof the following appeared to be with a significant potential for accumulation through food chains? (1) DDT (2) Parathion (3) Lindane (4) Carbary

1 Answer

Answer :

(1) DDT Explanation: Mercury and DDT are two persistent toxic materials that accumulate in the food chain and damage the organisms in it. DDT is an insecticide that can pass up the food chain from insects to small birds, and then from the small birds to birds of prey. It is now banned because of this.

Related questions

Description : Which of the following appeared to be with a significant potential for accumulation through food chains ? (1) DDT (2) Parathion (3) Lindane (4) Carbary

Last Answer : DDT

Description : Chloral is used in the manufacture of (A) DDT (B) BHC (C) Parathion (D) None of these

Last Answer : (A) DDT

Description : Whichof the following polymer does not exist in geometrical isomeric forms?

Last Answer : Whichof the following polymer does not exist in geometrical isomeric forms? A. Polyisoprene B. Polyacetylene C. Polybutadiene D. Polypropylene

Description : MCI and AT&T are examples of whichof the following? A) Social networks B) Communications systems C) Internet service providers D) Mobisodes

Last Answer : Internet service providers

Description : If a company wants to build a good “corporate image,” it will probably use whichof the following marketing communications mix tools? A. Advertising B. Public relations C. Direct marketing D. Sales promotion

Last Answer : B. Public relations

Description : Endosulphan is also known as— (A) Lindane (B) Thiodan (C) Aldrin (D) B.H.C.

Last Answer : (B) Thiodan

Description : Which of the following is not an insecticide? a. Parathion b. Aldrin c. Triazines d. Baygon

Last Answer : c. Triazines

Description : Which of the following is example of insect hormone a. Chitin b. Allethrin c. Lindane d. Ecdysone

Last Answer : d. Ecdysone

Description : Which of the following is example of insect hormone a. Chitin b. Allethrin c. Lindane d. Ecdysone

Last Answer : d. Ecdysone

Description : Parathion and Malathion are (A) Pesticides (B) Plasticisers for unsaturated polyesters (C) Pain-relieving drugs (analgesic) (D) Tranquilisers

Last Answer : (A) Pesticides

Description : Lindane is (A) Not a fumigant (B) BHC (Benzene Hexachloride) containing 99% γ-isomer (C) A by-product of BHC manufacture (D) Both (B) and (C)

Last Answer : (B) BHC (Benzene Hexachloride) containing 99% γ-isomer

Description : Carbon tetrachloride (CCl4 ) is the starting raw material for the manufacture of (A) Trichloroethylene (B) Perchloroethylene (C) Parathion (D) Methanol

Last Answer : (B) Perchloroethylene

Description : Which of the following statement(s) is/are true concerning the microvascular and cellular response to shock? a. Osmodically induced mobilization of intracellular fluid is the initial ... d. Abnormal intracellular calcium homeostasis may contribute to the cellular dysfunction of shock

Last Answer : Answer: c, d Moderate hypovolemia results in a relatively rapid spontaneous restitution of intravascular volume through expansion of the plasma space. This plasma expansion by ... potassium pump. Cellular dysfunction also appears to be related to abnormal intracellular calcium homeostasis

Description : What does the stomata open? (I) When the guard cells are in flaccid condition (ll) When there is an accumulation of K ions in the guard cells (III) When water enters into the guard cells (IV) When the water potential of ... of adjacent cells (A) II, III and IV I and IV (B) I and III (C) (D) None

Last Answer : (A) II, III and IV

Description : Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on (a) membrane potential (b) accumulation of Na+ ions (c) accumulation of K+ ions (d) proton gradient.

Last Answer : (d) proton gradient

Description : The movement of water, from one cell of cortex to adjacent one in roots, is due to (a) accumulation of inorganic salts in the cells (b) accumulation of organic compounds in the cells (c) water potential gradient (d) chemical potential gradient.

Last Answer : (c) water potential gradient

Description : DDT residues are rapidly passed through food chain causing biomagnification because DDT is

Last Answer : DDT residues are rapidly passed through food chain causing biomagnification because DDT is A. Water ... C. Liposoluble D. Nontoxic to aquatic animals

Description : DDT residues are rapidly passed through food chain causing biomagnification because DDT is

Last Answer : DDT residues are rapidly passed through food chain causing biomagnification because DDT is A. Water ... toxic D. Non-toxic to aquatic animals

Description : DDT residues are rapidly passed through food chain  causing biomagnification because DDT is (a) moderately toxic (b) non-toxic to aquatic animals (c) water soluble (d) lipo soluble.

Last Answer : (d) lipo soluble.

Description : DDT residues are rapidly passed through food chain causing biomagnification because DDT is (a) moderately toxic (b) non-toxic to aquatic animals (c) water soluble (d) lipo soluble.

Last Answer : (d) lipo soluble.

Description : Find the correct order of biomagnification of DDT in an aquatic food chain:

Last Answer : Find the correct order of biomagnification of DDT in an aquatic food chain: A. Water -0.003 ppm, zooplankton ... fish -0.04 ppm, large fish -2.5 ppm

Description : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in fish eating birds, upto:

Last Answer : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in ... B. 50 ppm C. 25 ppm D. 2 ppm

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. ... Decreases C. Increases or decreases D. Remains constant

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. Remain same B. Decreases in glaciers C. Increases D. Unpredictable

Description : The highest DDT concentration in aquatic food chain shall occur in:

Last Answer : The highest DDT concentration in aquatic food chain shall occur in: A. Phytoplankton B. Sea gull/birds C. Crab D. Eel

Description : The highest DDT concentration in aquatic food  chain shall occur in (a) phytoplankton (b) seagull (c) crab (d) eel.

Last Answer :  (b) seagull

Description : The highest DDT concentration in aquatic food chain shall occur in (a) phytoplankton (b) seagull (c) crab (d) eel.

Last Answer : b) seagull

Description : 10.Biomagnification of DDT in an aquatic food chain staring from water having conc.of 0.003ppb may go in fish eating birds upto (a)2ppm (b)25ppm (c)50ppm (d)100ppm

Last Answer : ANS.(B) 25ppm

Description : Pick out the wrong statement. (A) DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction (B) Chloral ... through the respiratory system are called fumigants (D) Benzene hexachloride is not a contact insecticide

Last Answer : (D) Benzene hexachloride is not a contact insecticide

Description : Benzenediazonium chloride reacts with phenol to form : (a) p-chlorophenol (b) Chlorobenzene (c) p-Hydroxyazobenzene (d) DDT

Last Answer : p-Hydroxyazobenzene

Description : DDT is prepared by the reaction of chlorobenzene with (in the presence of conc. H2SO4) (a) Chloral (b) Chlorine (c) Chloroform (d) Carbon tetrachloride

Last Answer : Chloral

Description : Gammexane is (a) Hexachloroethane (b) DDT (c) Hexachlorocyclohexane (d) TNT

Last Answer : Hexachlorocyclohexane

Description : Ethyl acetoacetate reacts with phenylhydrazine to give (a) Antipyrine (b) Aspirin (c) 4-Methyl uracil (d) DDT

Last Answer : Antipyrine

Description : Main objective of production/use of herbicide resistant GM crops is to (a) encourage eco-friendly herbicides (b) reduce herbicide accumulation in food articles for health safety (c) eliminate weeds from ... the use of manual labour (d) eliminate weeds from the field without the use of herbicides

Last Answer : (c) eliminate weeds from the field without the use of manual labour

Description : An inventory of homogeneous products that have similar production or demand requirements is developed through: A)sorting out. B)assorting. C)accumulation. D)allocation.

Last Answer : C)accumulation

Description : The open "Sigrees or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material

Last Answer : (1) tendency of carbon dioxide to form a layer along with dust smoke Explanation: Burning coal requires oxygen to chemically react. The availability of oxygen is limited in the furnace by several factors ... dioxide from forming layer along with dust smoke so as to keep the supply of oxygen intact.

Description : Global warming is mainly due to accumulation of – (1) Oxides of nitrogen (2) Oxides of sulphur (3) Carbon dioxide (4) Carbon monoxide

Last Answer : (3) Carbon dioxide Explanation: Global Warming refers to average increase in the earth's temperature due to increase in pollution which results in greenhouse effect which in turn leads to climate ... dioxide accumulate into the atmosphere and trap heat that would normally exit into the outer space.

Description : The open "Sigrees" or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material

Last Answer : tendency of carbon dioxide to form a layer along with dust smoke

Description : Muscle fatigue is caused by the accumulation of : (1) Pyruvic acid (2) Lactic acid (3) Oxalacetic acid (4) Uric acid

Last Answer : Lactic acid

Description : Global warming is mainly due to accumulation of (1) Oxides of nitrogen (2) Oxides of sulphur (3) Carbon dioxide (4) Carbon monoxide

Last Answer : Carbon dioxide 

Description : White we are, strong we are; but can be easily shaken and weakened, easily stained and dirtied; None was found at first, then one appeared; afterwards, more are seen and thirty two appear at last, we all stand ... our prey. The food you eat is our prey and we all are in you. What are we? -Riddles

Last Answer : Your TEETH!

Description : Don't you wish "COMMENTS" to our "ANSWERS" appeared directly UNDER our personal answer; instead of through the question thread with the @ sign?

Last Answer : It doesn’t bother me.

Description : In the blast furnace, incorporation of water vapour in the blast gives the following effect. (A) Increases the reducing potential of the gas (B) Increases the flame temperature (C) No significant change occurs (D) Increases the hydrogen content in the metal

Last Answer : (A) Increases the reducing potential of the gas

Description : The most significant nursing problem related to continuous tube feedings is a) potential for aspiration Because the normal swallowing mechanism is bypassed, consideration of the danger of ... in fat metabolism and lipoprotein synthesis Tube feedings maintain fat metabolism and lipoprotein synthesis.

Last Answer : a) potential for aspiration Because the normal swallowing mechanism is bypassed, consideration of the danger of aspiration must be foremost in the mind of the nurse caring for the patient receiving continuous tube feedings.

Description : The most significant feature of the antiarrhythmic action of lignocaine is: A. Suppression of phase-4 depolarization in ventricular ectopic foci B. Prolongation of action potential duration C. Prolongation of effective refractory period D. Depression of membrane responsiveness

Last Answer : A. Suppression of phase-4 depolarization in ventricular ectopic foci

Description : unlike food webs, food chains -General Knowledge

Last Answer : Unlike food webs, food chains involve a single chain of energy transfer from one organism to another through consumption.

Description : What is the interrelated food chains in an ecological community? -Do You Know?

Last Answer : answer:

Description : If several food chains overlap, this can best be described as?

Last Answer : food web