Which of the following bacteria reduce nitrate in soil into nitrogen? (a) Nitrobacter (b) Nitrococcus (c) Thiobacillus (d) Nitrosomonas

Which of the following bacteria reduce nitrate in
soil into nitrogen?
(a) Nitrobacter (b) Nitrococcus
(c) Thiobacillus (d) Nitrosomonas
by

1 Answer

Answer :

(c) Thiobacillus
by

Related questions

Two bacteria found to be very useful in genetic engineering experiments are (a) Nitrobacter and Azotobacter (b) Rhizobium and Diplococcus (c) Nitrosomonas and Klebsiella (d) Escherichia and Agrobacterium.

Description : Two bacteria found to be very useful in genetic engineering experiments are (a) Nitrobacter and Azotobacter (b) Rhizobium and Diplococcus (c) Nitrosomonas and Klebsiella (d) Escherichia and Agrobacterium.

Last Answer : (d) Escherichia and Agrobacterium.

83. Which one of the following is wrong statement ? (1) Nitrosomonas and Nitrobacter are chemoautotrophs (2) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also (3) Root nodule forming nitrogen fixers live as aerobes under free-living conditions (4) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins

Description : 83. Which one of the following is wrong statement ? (1) Nitrosomonas and Nitrobacter are chemoautotrophs (2) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also (3 ... living conditions (4) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins

Last Answer : Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins

Nitrites are oxidized to nitrates by a microorganism a. Nitrosomonas b. Nitrosococcus c. Nitrobacter d. Azatobacter

Description : Nitrites are oxidized to nitrates by a microorganism a. Nitrosomonas b. Nitrosococcus c. Nitrobacter d. Azatobacter

Last Answer : Ans: C

.How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia (a) Four (b) Five (c) Six (d) Three

Description : .How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia (a) Four (b) Five (c) Six (d) Three

Last Answer : (c) Six

Thiobacillus is a group of bacteria helpful in carrying out (a) denitrification (b) nitrogen fixation (c) chemoautotrophic fixation (d) nitrification.

Description : Thiobacillus is a group of bacteria helpful in carrying out (a) denitrification (b) nitrogen fixation (c) chemoautotrophic fixation (d) nitrification.

Last Answer : (a) denitrification

(3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia into nitrite is performed by two groups of organisms, ammonia-oxidizing bacteria AOB) and ammonia-oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.

Description : (3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia ... -oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.

Last Answer : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these

Bacteria of genus Nitrosomonas use __________ as their electron source. A.ammonia B.H2S C.succinate D.light

Description : Bacteria of genus Nitrosomonas use __________ as their electron source. A.ammonia B.H2S C.succinate D.light

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Conversion of soil nitrate into gaseous nitrogen is

Description : Conversion of soil nitrate into gaseous nitrogen is

Last Answer : Ans. Denitrification

The Taq polymerase enzyme is obtained from (a) Bacillus subtilis (b) Pseudomonas putida (c) Thermus aquaticus (d) Thiobacillus ferroxidans.

Description : The Taq polymerase enzyme is obtained from (a) Bacillus subtilis (b) Pseudomonas putida (c) Thermus aquaticus (d) Thiobacillus ferroxidans.

Last Answer : (c) Thermus aquaticus

Which one of the following is a slime mould? (a) Physarum (b) Thiobacillus (c) Anabaena (d) Rhizopus

Description : Which one of the following is a slime mould? (a) Physarum (b) Thiobacillus (c) Anabaena (d) Rhizopus

Last Answer : (a) Physarum

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.

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

Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ions and forms amino acids(B) Calcium present in the fertiliser helps in correcting the soil acidity(C) Particle size range of a good granular fertiliser is 10-15 mesh and itcontains less moisture as compared to finely divided powder form of fertiliser(D) Ammonium nitrate fertiliser is obtained as a by-product in an integratedsteel plant having by-product coke ovens

Description : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Nitrifying bacteria (a) oxidise ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia (d) reduce nitrates to free nitrogen.

Description : Nitrifying bacteria (a) oxidise ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia (d) reduce nitrates to free nitrogen.

Last Answer : (a) oxidise ammonia to nitrates

Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills? (1) Pseudomonas (2) Agrobacterium (3) Clostridium (4) Nitrosomonas

Description : Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills? (1) Pseudomonas (2) Agrobacterium (3) Clostridium (4) Nitrosomonas

Last Answer : (4) Nitrosomonas Explanation: Nitrosomonas is a genus comprising rod shaped chemoautotrophic bacteria. This rare bacteria oxidizes ammonia into nitrite as a metabolic process. Nitrosomonas are useful in treatment of industrial and sewage waste and in the process of bioremediation.

Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills ? (1) Pseudomonas (2) Agrobacterium (3) Clostridium (4) Nitrosomonas

Description : Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills ? (1) Pseudomonas (2) Agrobacterium (3) Clostridium (4) Nitrosomonas

Last Answer : Nitrosomonas

Pick out the wrong statement. (A) Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water (B) Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4 )6 (F, Cl, OH) (C) Urea is more hygroscopic than ammonium nitrate (D) Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound fo

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Last Answer : (C) Urea is more hygroscopic than ammonium nitrate

Which is the free living soil bacteria in fixes nitrogen? Anatomy: Azotobacter.

Description : Which is the free living soil bacteria in fixes nitrogen? Anatomy: Azotobacter.

Last Answer : Who in 1939 suggested the name meson for middle-weight particles?

Organisms, which fix atmospheric nitrogen in the soil, fall under the category of (a) bacteria (b) green algae (c) soil fungi (d) mosses.

Description : Organisms, which fix atmospheric nitrogen in the soil, fall under the category of (a) bacteria (b) green algae (c) soil fungi (d) mosses.

Last Answer : (a) bacteria

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

mmonium nitrate is (A) Having about 40% N2 (B) Not hygroscopic (C) Not prone to explosive thermal decomposition (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

Description : mmonium nitrate is (A) Having about 40% N2 (B) Not hygroscopic (C) Not prone to explosive thermal decomposition (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

Last Answer : (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

What is the percent of nitrogen in sodium nitrate?

Description : What is the percent of nitrogen in sodium nitrate?

Last Answer : The percent of nitrogen in sodium nitrate is 16,47 %.

What is the oxidation number of nitrogen in sodium nitrate?

Description : What is the oxidation number of nitrogen in sodium nitrate?

Last Answer : The oxidation number of nitrogen in sodium nitrate is 5.

Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Last Answer : Ans: (b)

Under anaerobic conditions, bacterium Pseudomonas changes (a) Nitrate to molecular nitrogen (b) Nitrate to ammonia (c) Nitrate to nitrite (d) Nitrite to nitrate

Description : Under anaerobic conditions, bacterium Pseudomonas changes (a) Nitrate to molecular nitrogen (b) Nitrate to ammonia (c) Nitrate to nitrite (d) Nitrite to nitrate

Last Answer : Ans. ((a))

The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Description : The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Last Answer : Ans:(a)

Nitrogen fixation is a process of - (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia

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Last Answer : (4) Conversion of molecular nitrogen to ammonia Explanation: Nitrogen fixation is a process by which nitrogen in the Earth's atmosphere is converted into ammonia (NH3) or other molecules available ... plants as nutrients. The conversion of organic nitrogen to proteins is achieved in Nitrogen cycle.

Which of the following molecules or ions involved in the Nitrogen Cycle do not contain oxygen atom? (1) Nitrite (2) Ammonia (3) Nitrate (4) Laughing gas

Description : Which of the following molecules or ions involved in the Nitrogen Cycle do not contain oxygen atom? (1) Nitrite (2) Ammonia (3) Nitrate (4) Laughing gas

Last Answer : (2) Ammonia

Nitrogen in water is commonly found in the form of - (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Description : Nitrogen in water is commonly found in the form of - (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Last Answer : (2) Nitrate Explanation: Nitrate (NO3) is the most common form of inorganic nitrogen in unpolluted waters. Nitrate moves readily through soils and into ground water, where concentrations can be much higher than in surface waters. Water in coastal areas mainly contains elementary nitrogen gas (N2).

Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Description : Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Last Answer : (3) Ammonium nitrate Explanation: A growth fertilizer will have a high N content and relatively low P and K content. Ammonium nitrate is the highest Nitrogen fertilizer you can buy, and it is ... formulations of growth fertilizers will contain 5, 6 or even 7 times more Nitrogen than anything else.

Photochemical smog pollution does not contain (a) PAN (peroxyacyl nitrate) (b) ozone (c) nitrogen dioxide (d) carbon dioxide.

Description : Photochemical smog pollution does not contain (a) PAN (peroxyacyl nitrate) (b) ozone (c) nitrogen dioxide (d) carbon dioxide.

Last Answer : (d) carbon dioxide.

In which form is nitrogen absorbed by paddy under waterlogged condition ? (A) NH 4 ion (B) Nitrate ion (C) NO 2 ion (D) N 2

Description : In which form is nitrogen absorbed by paddy under waterlogged condition ? (A) NH 4 ion (B) Nitrate ion (C) NO 2 ion (D) N 2

Last Answer : (B) Nitrate ion

Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds (c) Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Last Answer : (d) Anaerobic ammonium oxidation and denitrification

In calcium ammonium nitrate (CAN) fertiliser (A) Nitrate nitrogen is quick acting (B) Ammoniacal nitrogen is quick acting (C) Nitrate nitrogen is slower acting (D) None of these

Description : In calcium ammonium nitrate (CAN) fertiliser (A) Nitrate nitrogen is quick acting (B) Ammoniacal nitrogen is quick acting (C) Nitrate nitrogen is slower acting (D) None of these

Last Answer : (A) Nitrate nitrogen is quick acting

Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent. (A) 10 (B) 25 (C) 50 (D) 80

Description : Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent. (A) 10 (B) 25 (C) 50 (D) 80

Last Answer : (B) 25

Ammonium nitrate (a fertiliser) is coated with limestone powder to (A) Increase its nitrogen content (B) Cut down its production cost (C) Avoid the risk of explosion (D) Add extra nutrient as fertiliser

Description : Ammonium nitrate (a fertiliser) is coated with limestone powder to (A) Increase its nitrogen content (B) Cut down its production cost (C) Avoid the risk of explosion (D) Add extra nutrient as fertiliser

Last Answer : (C) Avoid the risk of explosion

Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Description : Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Last Answer : (C) Urea

Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less

Description : Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less

Last Answer : (A) It is hygroscopic and explosive in nature

Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia

Description : Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia

Last Answer : (D) Liquid ammonia

Nitrogen content of a nitrogenous fertiliser is 35%. It could be (A) Urea (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) Ammonium sulphate

Description : Nitrogen content of a nitrogenous fertiliser is 35%. It could be (A) Urea (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) Ammonium sulphate

Last Answer : (B) Ammonium nitrate

Incorporation of atmospheric N2to NH4 + occurs via the process of A.assimilatory nitrate reduction B.transamination C.deamination D.nitrogen fixation

Description : Incorporation of atmospheric N2to NH4 + occurs via the process of A.assimilatory nitrate reduction B.transamination C.deamination D.nitrogen fixation

Last Answer : D.nitrogen fixation

Which one of the following tests employs ferroin indictor ? (a) Chemical oxygen demand (b) Ammonia nitrogen (c) Nitrate nitrogen (d) Fluoride

Description : Which one of the following tests employs ferroin indictor ? (a) Chemical oxygen demand (b) Ammonia nitrogen (c) Nitrate nitrogen (d) Fluoride

Last Answer : (a) Chemical oxygen demand

Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is turned on by a sensor, and a series of chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Description : Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is ... chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Last Answer : Air-bags in automobiles.

Which of the following nitrogen-containing compounds is most readily used by plants? w) nitrogen dioxide x) ammonia y) nitrous oxide z) nitrate

Description : Which of the following nitrogen-containing compounds is most readily used by plants? w) nitrogen dioxide x) ammonia y) nitrous oxide z) nitrate

Last Answer : ANSWER: Z -- NITRATE

Nitrogen fixation is a process of (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia

Description : Nitrogen fixation is a process of (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia

Last Answer : Conversion of molecular nitrogen to ammonia

Nitrogen in water is commonly found in the form of (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Description : Nitrogen in water is commonly found in the form of (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Last Answer : Nitrate

Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Description : Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Last Answer : Ammonium nitrate

Which type of N-fertilizer is suitable for water-logged soil? a) Zinc Phosphet b) Ammonium Sulphate c) Calcium d) Potassium Nitrate

Description : Which type of N-fertilizer is suitable for water-logged soil? a) Zinc Phosphet b) Ammonium Sulphate c) Calcium d) Potassium Nitrate

Last Answer : b) Ammonium Sulphate

Which Bacteria convert atmospheric nitrogen into nitrogenous compound? -General Knowledge

Description : Which Bacteria convert atmospheric nitrogen into nitrogenous compound? -General Knowledge

Last Answer : The answer is 'Nitrogen fixing bacteria'

Which Bacteria convert atmospheric nitrogen into nitrogenous compound? -General Knowledge

Description : Which Bacteria convert atmospheric nitrogen into nitrogenous compound? -General Knowledge

Last Answer : answer:

Which Bacteria convert atmospheric nitrogen into nitrogenous compound? -General Knowledge

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