Description : Microbial degradation of nitrates into atmospheric nitrogen is known as- (1) Ammonification (2) Nitrification (3) Denitrification (4) Putrefaction
Last Answer : (3) Denitrification Explanation: Denitrification is the biological conversion of nitrate to nitrogen gas, nitric oxide or nitrous oxide. It refers to nitrate reduction by bacterial species such as ... (N2). These bacteria use nitrate as an electron acceptor instead of oxygen during respiration.
Description : Microbial degradation of nitrates into atmospheric nitrogen is known as : (1) Ammonification (2) Nitrification (3) Denitrification (4) Putrefaction
Last Answer : 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
Description : The process in which nitrogen is released into the atmosphere is (1) Ammonification (2) Denitrification (3) Biological nitrogen Fixation (4) Nitirification
Last Answer : Biological nitrogen Fixation
Description : Study the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D (a) Nitrification Ammoni- Animals Plants fication (b) ... Plants Animals fication (c) Nitrification Denitri- Animals Plants fication (d) Denitrification Nitrification Plants Animals
Last Answer : (b) Denitrification Ammoni- Plants Animals fication
Description : Which of the following bacteria reduce nitrate in soil into nitrogen? (a) Nitrobacter (b) Nitrococcus (c) Thiobacillus (d) Nitrosomonas
Last Answer : (c) Thiobacillus
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
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : Bacteria, as a group, are responsible for A.nitrogen oxidation B.sulfur oxidation C.nitrogen fixation D.all of these
Last Answer : D.all of these
Description : What are chemoautotrophic bacteria? -Biology
Last Answer : answer:
Description : Chemoautotrophic bacteria obtain energy from what? -Biology
Description : Chemoautotrophic bacteria obtain the energy they need from a. The Reactions Of Photosynthesis. b. Sunlight. c. Carbon Dioxide In The Atmosphere. d. Inorganic Chemicals.
Last Answer : b. Sunlight.
Description : What role does denitrification play in the nitrogen cycle? -Biology
Description : other than bacteria which factor leads to nitrogen fixation -General Knowledge
Last Answer : Other than bacteria, flood leads to nitrogen fixation.
Description : Which one of the following bacteria has potential for nitrogen fixation
Last Answer : Which one of the following bacteria has potential for nitrogen fixation A. Nitrosomonas B. Nitrobacter C. Nitrosococcus D. Rhizobium
Description : The bacteria responsible for ‘nitrogen fixation’ is found in the roots of (a) grass (b) citrus plants (c) leguminous plants (d) neem tree
Last Answer : Ans:(c)
Description : Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in - (1) peas (2) wheat (3) corn (4) oats
Last Answer : (1) peas Explanation: Nitrogen-fixing bacteria are microorganisms capable of transforming atmospheric nitrogen into fixed. nitrogen. Rhizobium is one such bacteria that is associated with leguminous plants ... and convert free nitrogen to ammonia, which the host plant utilizes for its development.
Description : Which is a free living bacteria that help in nitrogen fixation?
Last Answer : Azotohacter
Description : What is Azofication (a) It is also known as composite fixation of nitrogen. (b) It is also known as free fixation of nitrogen (c) It is also known as nitrogen fixed by Rhizobium bacteria ` (d) It is also known as nitrogen gain through rains or snow
Last Answer : (a) It is also known as composite fixation of nitrogen.
Description : “Azotobacter” bacteria is known for biological fixation of which atmospheric gas? a. A Oxygen b. B Nitrogen c. C Carbon Dioxide d. D Helium
Last Answer : b. B Nitrogen
Description : ______ helps in fixation of nitrogen in rice field in association with root of Cycas plant. a) rhizobium b)fungus c)cyano bacteria d)bacteria
Last Answer : c)cyano bacteria
Description : Nitrogen fixation is accomplished by: a) plants b) bacteria c) animals d) viruses
Last Answer : ANSWER: B -- bacteria
Description : Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in (1) peas (2) wheat (3) corn (4) oats
Last Answer : peas
Description : 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) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the process is known as nitrification? (1) Reaction of Nitrogen Monoxide with oxygen to form nitric acid (2) Reaction of nitrogen dioxide with water to form nitric acid (3) Conversion of ammonia to nitrites (4) Conversion of nitrite to nitric oxide
Last Answer : Conversion of ammonia to nitrites
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
Description : Which one of the following is a slime mould? (a) Physarum (b) Thiobacillus (c) Anabaena (d) Rhizopus
Last Answer : (a) Physarum
Description : Symbiotic N2 - fixation is carried out by which bacteria?
Last Answer : Rhizobium leguminosarum
Description : Non - symbiotic N2 - fixation is carried out by bacteria such as.......... and.......... ?
Last Answer : Azotobacter & Clostridium
Description : The maximum fixation of solar energy is done by – (1) Bacteria (2) Protozoa (3) Fungi (4) Green plants
Last Answer : (4) Green plants Explanation: The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in plants and algae. Approximately two thirds of the net ... free energy are stored in plant biomass for every mole of CO2 fixed during photosynthesis.
Description : The maximum fixation of solar energy is done by - (1) Protozoa (2) Bacteria (3) Fungi (4) Green plants
Last Answer : (4) Green plants Explanation: The maximum 20% of the input of solar energy falling on leaves is converted into chemical energy by green plants. Green plants utilize solar energy and synthesize sugar from ... 3% of the light energy that strikes on their green parts; the rest is dissipated as heat.
Description : The maximum fixation of solar energy is done by (1) Protozoa (2) Bacteria (3) Fungi (4) Green plants
Last Answer : Green plants
Description : Major nitrogen fixation is carried out by
Last Answer : Major nitrogen fixation is carried out by A. Lightning B. Chemical industries C. symbiotic bacteria D. Leaching
Description : 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 ... fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound fo
Last Answer : (C) Urea is more hygroscopic than ammonium nitrate
Description : What is biological Nitrogen fixation? -Biology
Description : End product of biological nitrogen fixation? -Biology
Description : What is non-biological nitrogen fixation? -Biology
Description : What is symbiotic biological nitrogen fixation? -Biology
Description : Which enzyme is responsible for atmospheric nitrogen fixation? -Biology
Description : What is the function of Leghaemoglobin in nitrogen fixation? -Do You Know?
Description : By which algae is Nitrogen fixation done? -Do You Know?
Last Answer : blue-green algae
Description : What is Nitrogen Fixation ?
Last Answer : The largest source of nitrogen is the atmosphere. 6% (volumetric) nitrogen of the atmosphere. We cannot use nitrogen directly from the atmosphere. So for convenience of use, we do not usually convert ... . There are two methods of nitrogen fixation - 1. Natural methods and II. Synthetic method.
Last Answer : Nitrogen fixation refers to the application of nitrogen from air to a special process.
Description : How may ATP are required for formation ofone `NH_(3)` in biological nitrogen fixation.
Last Answer : How may ATP are required for formation ofone `NH_(3)` in biological nitrogen fixation.
Description : difference between bacterial cell from function and nitrogen fixation
Last Answer : difference between bacterial cell from plant cell on nitrogen fixation
Description : How Nitrogen fixation for plants occurs in what organism?
Last Answer : Nitrogen fixation is carried out by nitrogen fixing bacteria in the nodules of the roots of legumes, and in the soil.
Description : What The process of nitrogen fixation involved?
Last Answer : Changing it from a gas (N2) into a compound (often with O2
Description : "Mulching" is the term used for the process of (a) Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc. (b) Breaking down big pieces ... into small ones (c) Transplanting of paddy seedlings (d) Nitrogen fixation of soil by use of fertilizers
Last Answer : Ans: (a)
Description : The enzyme involved in biological nitrogen fixation
Last Answer : Ans. Nitrogenase