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 : Symbiotic nitrogen fixing bacteria is — a. Azotobacter b. Azospirillum c. Rhizobium d. None of these
Last Answer : c. Rhizobium
Description : What culture should be given priority in groundnut cultivation? 1) Mycorrhiza 2) Rhizobium 3) Phosphobacteria 4) Azospirillum]
Last Answer : 2) Rhizobium
Description : An organism used as a biofertilizer for raising soybean crop is (a) Azotobacter (b) Azospirillum (c) Rhizobium (d) Nostoc.
Last Answer : (c) Rhizobium
Description : The common nitrogen-fixer in paddy fields is (a) Rhizobium (b) Azospirillum (c) Oscillatoria (d) Frankia.
Last Answer : (b) Azospirillum
Description : Which of the following is also used as a Bio fertilizer? (1) Rhizobium (2) Azotobactar (3) Azospirillum (4) All of the above
Last Answer : (4) All of the above Explanation: Rhizobium, Azotobacter, Azospirillum and blue green algae are traditionally used as Bio fertilizers.
Description : What culture should be given priority in groundnut cultivation? a. Mycorrhiza b. Rhizobium c. Phosphobacteria d. Azospirillum
Last Answer : b. Rhizobium
Description : A non-photosynthetic aerobic nitrogen fixing soil bacterium is (a) Rhizobium (b) Clostridium (c) Azotobacter (d) Klebsiella.
Last Answer : (c) Azotobacter
Description : Most commonly used organism in SCP is (a) Bacillus (b) E. coli (c) Spirulina (d) Pseudomonas
Last Answer : (c) Spirulina
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 : Nitrogen fixation in root nodules of Alnus is brought about by (a) Frankia (b) Azorhizobium (c) Bradyrhizobium (d) Clostridium
Last Answer : (a) Frankia
Description : The essential element required by the N fixing bacterium Rhizobium
Last Answer : Ans. Mo
Description : The main causative agent of Epizootic Ulcerative Syndorme (EVS) is (a) Aphanomyces invadens (b) A. hydrophilla (c) Pseudomonas maxima (d) Myxobolus cyprinid
Last Answer : (a) Aphanomyces invadens
Description : The following statement(s) is/are true concerning gram-negative bacterial sepsis. a. Mortality due to this condition has almost been eliminated due to therapeutic intervention with antibiotics, aggressive ... sepsis is generally considered a more serious problem than sepsis due to a single organism
Last Answer : Answer: c, e Gram-negative bacterial sepsis is a serious disease process that produces substantial morbidity and mortality in both normal and immunocompromised patients (10% to 20% and ... and most investigators agree that polymicrobial sepsis is more lethal than infection with a single organism
Description : The organism, used for alcohol fermentation, is (a) Aspergillus (b) Saccharomyces (c) Pseudomonas (d) Penicillium.
Last Answer : (b) Saccharomyces
Description : Read the following statement having two blanks (A and B). A drug used for A patients is obtained from a species of the organism B . The one correct option for the two blanks is A B (a) heart Penicillium (b) organ-transplant Trichoderma (c) swine flu Monascus (d) AIDS Pseudomonas.
Last Answer : (c) swine flu Monascus
Description : Which of the following organism can penetrate intact corneal epithelium? A. Strept pyogenes B. Staph aureus C. Pseudomonas pyocyanaea D. Corynebacterium diphtheriae
Last Answer : ANSWER: D
Description : Write an example of nitrogen fixing algae?
Last Answer : Cyanobacteria
Description : Rhizobium fixes atmospheric nitrogen/ha to the soil
Last Answer : Ans. 50-100 kg
Description : Select the mismatch. (a) Rhodospirillum – Mycorrhiza (b) Anabaena – Nitrogen fixer (c) Rhizobium – Alfalfa (d) Frankia – Alnus
Last Answer : (a) Rhodospirillum – Mycorrhiza
Description : One of the free-living, anaerobic nitrogen-fixeris (a) Beijerinckia (b) Rhodospirillum (c) Rhizobium (d) Azotobacter.
Last Answer : b) Rhodospirillum
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 : 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 : Rhizobium fixes nitrogens in the roots of _____, so they don't need to be fertilized; in fact they add nitrogen to the soil. a. corn b. legumes c. wheat d. grasses e. oats
Last Answer : b. legumes
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 : Select the mismatch : (1) Rhodospirillum - Mycorrhiza (2) Anabaena - Nitrogen fixer (3) Rhizobium - Alfalfa (4) Frankia - Alnus
Last Answer : (1) Rhodospirillum - Mycorrhiza
Description : Major cause of mango fruit drop is ___ A) Lack of pollination B) Low stigmatic receptivity C) Defective perfect flower D) All of the above
Last Answer : D) All of the above
Description : ___ soil is also known by different names like Reh, Kallar and Usar? a Peaty and Marshy Soils b Saline and Alkaline Soil c Red soils d Alluvial Soil e Laterite Soil
Last Answer : c Red soils
Description : ___ amino acids are commonly found in milk proteins, including the essential amino acids. a) 7 b) 12 c) 14 d) 19
Last Answer : d) 19
Description : ___ is a milk process that makes milk more easily digested by those with a sensitive digestive system. a) Ionization b) Evaporation c) Pasteurization d) Homogenization
Last Answer : d) Homogenization
Description : Milk is a good source of all water-soluble vitamins except for ___ a) Cyanocobalamin b) Riboflavin c) Ascorbic Acid d) Thiamine
Last Answer : c) Ascorbic Acid
Description : Rules developed by the ___ are designed to protect the health and welfare of consumers. a) United States Department of Agriculture (USDA) b) Protein and Lactose Organization (PLO) c) Future Farmers of America (FFA) d) Food and Drug Administration (FDA)
Last Answer : d) Food and Drug Administration (FDA)
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 : Example of associative social process is A. Assimilation B. Conflict C. Competition D. None of the above
Last Answer : A. Assimilation
Description : An example of endomycorrhiza is (a) Nostoc (b) Glomus (c) Agaricus (d) Rhizobium.
Last Answer : (b) Glomus
Description : What is the causal organism of Powdery mildew of Ricinus communis ? (A) Sphacelotheca reiliana (B) Claviceps microcephala (C) Leveillula taurica (D) Puccinia carthami (E) Fusarium annuum
Last Answer : (C) Leveillula taurica
Description : The causal organism of Ranikhet disease of fowls is...... (A) Pasteurella multocida (B) Brucella melitensis (C) Clorstridium chauvoei (D) Sporoltrix schenkii (E) None of these
Last Answer : (C) Clorstridium chauvoei
Description : Micro-organism,which can grow at higher temperature, is called a. Mesophils b. Phycrophils c. Thermophils d. None of these
Last Answer : c. Thermophils
Description : Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C
Last Answer : 3) 50°C – 60°C
Description : In H.T.S.T. pasteurization, which one of the following organisms is chosen as index organism for killing? 1) S.thermophilus 2) S.lactis 3) B.subtilis 4) M.tuberculosis
Last Answer : 1) S.thermophilus
Description : Biofertilizers are – 1) Organic manures 2) Green manure 3) Culture of micro-organism 4) None of these
Last Answer : 3) Culture of micro-organism
Description : Who has first time seen the micro-organism? a) Robert Koch b) John Tyndall c) Antonie van Leeuwenhoek d) Louis Pasteur
Last Answer : d) Louis Pasteur
Description : Micro-organism,which can grow at higher temperature, is called a) Thermophils b) Mesophils c) Phycrophils d) None of these
Last Answer : a) Thermophils
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 : 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 : Non leguminous nitrogen fixing trees
Last Answer : Ans. Alnus nepalensis
Description : Nitrogen fixing tree
Last Answer : Ans. Leucaena leucocephala