Description : Which of the following is free-living aerobic non- photosynthetic nitrogen-fixing bacterium? (a) Nostoc (b) Azospirillum (c) Rhizobium (d) Azotobacter
Last Answer : (d) Azotobacter
Description : A non-photosynthetic aerobic nitrogen fixing soil bacterium is (a) Rhizobium (b) Clostridium (c) Azotobacter (d) Klebsiella.
Last Answer : (c) Azotobacter
Description : The nitrogen fixing bacterium found on root surface of rice
Last Answer : Ans.Azospirillum
Description : All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia (a) can induce root nodules on many plant species (b) can fix ... its host plant through root hair deformation and stimulates cell proliferation in the host's cortex
Last Answer : (b) can fix nitrogen in the free-living state
Description : Free-living nitrogen fixing microorganisms are - (1) Rhizobia (2) Soil fungi (3) Vesicular arbuscular mycorrhiza (4) Blue green algae
Last Answer : (1) Rhizobia Explanation: Rhizobia are soil bacteria that fix nitrogen (diazotrophs) after becoming established inside root nodules of legumes. Rhizobia require a plant host; they cannot independently fix nitrogen. In general, they are Gram-negative, motile, non-sporulating rods.
Description : Free-living nitrogen fixing microorganisms are (1) Rhizobia (2) Soil fungi (3) Vesicular arbuscular mycorrhiza (4) Blue green algae
Last Answer : Rhizobia
Description : Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above
Last Answer : Ans. (c)
Description : A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is (a) Tolypothrix (b) Chlorella (c) Nostoc (d) Anabaena.
Last Answer : (d) Anabaena.
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
Description : The essential element required by the N fixing bacterium Rhizobium
Last Answer : Ans. Mo
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))
Description : Which bacterium is used for nitrogen fixation in sugarcane field?
Last Answer : Ans.Acetobactor diazotrophicus
Description : Can you explain the Haber-Bosch nitrogen fixing process?
Last Answer : Here is the most complete description of the reaction that I've found. Yes, ammonia (NH3) is the end result. First, hydrogen is derived from natural gas by another process (described in the ... and hydrogen which allows them to combine with less total energy than they would need to combine directly.
Description : Name some non-symbiotic nitrogen fixing prokaryote. -Biology
Last Answer : answer:
Description : Nitrogen fixing bacteria is useful in growing which crop? -Do You Know?
Description : $ Nitrogen fixing bateria always live in symbiosis. ! Symbiosis occurs between the organisms of the same species.
Last Answer : $ Nitrogen fixing bateria always live in symbiosis. ! Symbiosis occurs between the organisms of the same species. ... D. If both As and R are wrong.
Description : Non leguminous nitrogen fixing trees
Last Answer : Ans. Alnus nepalensis
Description : Nitrogen fixing tree
Last Answer : Ans. Leucaena leucocephala
Description : Nitrogen fixing bacteria found in the root nodules of leguminous plant is:- (1) Saprophytic (2) Parasitic (3) Symbiotic (4) Autotrophic
Last Answer : (3) Symbiotic Explanation: Many legumes have root nodules that provide a home for symbiotic nitrogenfixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions. .
Description : Nitrogen fixing bacteria is useful in growing which crop?
Last Answer : Legume
Description : Write an example of nitrogen fixing algae?
Last Answer : Cyanobacteria
Description : Name two nitrogen fixing bacteria?
Last Answer : Rhizobium & Azetobactor
Description : What is meant by nitrogen fixing bacteria?
Last Answer : The bacteria that convert nitrogen of the air into compounds of nitrogen and thus increase fertility of the soil are called nitrogen fixing bacteria.
Description : The most thoroughly studied of the known bacteria- plant interactions is the (a) cyanobacterial symbiosis with some aquatic ferns (b) gall formation on certain angiosperms by Agrobacterium (c) ... stems by nitrogen fixing bacteria (d) plant growth stimulation by phosphate- solubilising bacteria.
Last Answer : (b) gall formation on certain angiosperms by Agrobacterium
Description : Which one of the following statements is correct? (a) Legumes fix nitrogen only through the specialized bacteria that live in their roots. (b) Legumes fix nitrogen independently of the specialized ... specialized bacteria that live in their leaves. (d) Legumes are incapable of fixing nitrogen.
Last Answer : (a) Legumes fix nitrogen only through the specialized bacteria that live in their roots.
Description : A prokaryotic autotrophic nitrogen fixing symbiont is found in (a) Alnus (b) Cycas (c) Cicer (d) Pisum.
Last Answer : (b) Cycas
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (a) Spirulina (b) Anabaena (c) Frankia (d) Tolypothrix.
Last Answer : (b) Anabaena
Description : ___ is the example of associative, nonsymbiotic nitrogen fixing organism. (A) Rhizobium (B) Azorhizobium (C) Pseudomonas ‘ (D) Azospirillum
Last Answer : (C) Pseudomonas ‘
Description : Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism? (a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia
Last Answer : (d) Casuarina equisetifolia
Description : Nitrogen fixing bacteria make combination with cells of the roots of - a) Pulses b) Rice c) Wheat d) Sugarcane
Last Answer : a) Pulses
Description : What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen fixing microorganisms. 3. ... are correct? a) 1 and 2 only b) 2 only c) 1 and 3 only d) 1, 2 and 3
Last Answer : d) 1, 2 and 3
Description : In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen fixing bacteria and methanogenic archaebacteria? (a) Plantae (b) Protista (c) Monera (d) Fungi
Last Answer : (c) Monera
Description : In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five kingdom system of classification is used? (a) Plantae (b) Fungi (c) Protista (d) Monera
Last Answer : If the five-kingdom system of classification is used, the Archaea would be classified under the kingdom (d) Monera. This kingdom includes prokaryotic organisms such as bacteria and archaea. Archaea ... systems, such as the three-domain system that separates life into Bacteria, Archaea, and Eukarya.
Description : Symbiotic nitrogen fixing bacteria is — a. Azotobacter b. Azospirillum c. Rhizobium d. None of these
Last Answer : c. Rhizobium
Description : Which nitrogen fixing bacteria is found in leguminuous plant?
Last Answer : Rizobium
Description : Which root contain nitrogen fixing bacteria?
Last Answer : Nodulated root
Description : A nitrogen fixing weed species in wheat a). Lathyrus aphaca b). Medicago denticulata c). Vicia sativa d). All
Last Answer : d). All
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (1) Tolypothrix (2) Spirulina (3) Anabaena (4) Frankia
Last Answer : (3) Anabaena
Description : 1. Which nitrogen fixing bacteria is found in leguminuous plant? 2. A person to be qualified for standing in a panchayat election what age must have he attained? 3. Mirage is observed in ... coal reserves of India are found in which state? 20. Which Sultan provided employment to unemployeds?
Last Answer : Answer : 1. Rizobium 2. 21 years 3. Total reflection 4. Granite 5. Jahangir 6. Karnataka 7. Foreign Institutional Investors 8. Mycorrhizae 9. Barren Island 10. Aurobindo Ghosh 11. M. Hidayatullah 12. ... 16. New Delhi 17. Muscles ear lobe 18. Neelam Sanjiva Reddy 19. Jharkhand 20. Firoz shah Tughlaq
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?
Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.
Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
Description : The smallest living cell is that of a (a) bacterium (b) bread mold (c) mycoplasma (d) virus
Last Answer : Ans:(c)
Description : The bacterium Deinococcus radiodurans has been of interest to molecular biologists because a. it has the smallest known bacterial genome. b. it is a "living fossil" linking the Bacteria and Archaea. c. it has the largest known bacterial genome. d. it is very resistant to radiation damage.
Last Answer : d. it is very resistant to radiation damage.
Description : The hereditary material present in the bacterium E.coli is (a) single-stranded DNA (b) double-stranded DNA (c) DNA (d) RNA.
Last Answer : (b) double-stranded DNA
Description : Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful ... . How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One
Last Answer : (B) Chikungunya is caused by a Gram negative bacterium.
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
Description : name the organisms which are free living but as symbiontscan fix atmospheric nitrogen
Last Answer : name the organisms which are free living but as symbiontscan fix atmospheric nitrogen
Description : Which is a free living bacteria that help in nitrogen fixation?
Last Answer : Azotohacter
Description : One of the free-living, anaerobic nitrogen-fixeris (a) Beijerinckia (b) Rhodospirillum (c) Rhizobium (d) Azotobacter.
Last Answer : b) Rhodospirillum
Description : Plants absorb dissolved nitrates from soil and convert them into (a) Free nitrogen (b) Urea (c) Ammonia (d) Proteins
Last Answer : Ans:(a)