Description : Which of the following microorganisms is used for production of citric acid in industries? (a) Aspergillus niger (b) Rhizopus nigricans (c) Lactobacillus bulgaris (d) Penicillium citrinum
Last Answer : (a) Aspergillus niger
Description : Match the following organisms with the products they produce. (A) Lactobacillus (i) Cheese (B) Saccharomyces (ii) Curd cerevisiae (C) Aspergillus niger (iii) Citric acid (D) Acetobacter aceti (iv) Bread (v) Acetic acid Select the correct ... v) (iii) (c) (ii) (iv) (iii) (v) (d) (iii) (iv) (v) (i)
Last Answer : c) (ii) (iv) (iii) (v)
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
Description : Most important species of vinegar bacteria causing sliminess is A-.Acetobacteraceti B- Saccharomyces carlsbergiensis C- Lactobacillus lactis D- None of the above
Last Answer : .Acetobacteraceti
Description : Most important species of vinegar bacteria causing sliminess is A- Acetobacteraceti B- Saccharomyces carlsbergiensis C- Lactobacillus lactis D- None of the above
Last Answer : Acetobacteraceti
Description : The organism, used for alcohol fermentation, is (a) Aspergillus (b) Saccharomyces (c) Pseudomonas (d) Penicillium.
Last Answer : (b) Saccharomyces
Description : Which of the following is correctly matched for the product produced by them? (a) Methanobacterium : Lactic acid (b) Penicillium notatum : Acetic acid (c) Sacchromyces cerevisiae : Ethanol (d) Acetobacter aceti : Antibiotics
Last Answer : (c) Sacchromyces cerevisiae : Ethanol
Description : Which of the following is correctly matched for the product produced by them ? (1) Methanobacterium : Lactic acid (2) Penicillium notatum : Acetic acid (3) Sacchromyces cerevisiae : Ethanol (4) Acetobacter aceti : Antibiotics
Last Answer : (3) Sacchromyces cerevisiae : Ethanol
Description : Yeast (Saccharomyces cerevisiae) is used in the industrial production of (a) tetracyline (b) ethanol (c) butanol (d) citric acid.
Last Answer : (b) ethanol
Description : Ethanol is commercially produced through a particular species of (a) Saccharomyces (b) Clostridium (c) Trichoderma (d) Aspergillus.
Last Answer : (a) produce methane
Description : Match the following list of microbes and their importance. Column I Column II A. Saccharomyces (i) Production of cerevisiae immuno- suppressive agent B. Monascus (ii) Ripening of Swiss purpureus cheese C. Trichoderma (iii)Commercial ... C-(i), D-(ii) (d) A-(iv), B-(iii), C-(ii),D-(i)
Last Answer : (c) A-(iii), B-(iv), C-(i), D-(ii)
Description : Microbial rennet, which is used in cheese manufacture is produced by A- .Mucorspp B- Aspergillusspp C- Bacillus spp D- Saccharomyces spp
Last Answer : Aspergillusspp
Description : Which one of the following raw material is used in the manufacture of foam used in mattresses cushions etc. A. Phenol B. Urea C. Methanol D. Ethanol
Last Answer : ANSWER: A
Description : Is lactobacillus acidophilus photosynthetic?
Last Answer : Need answer
Description : Vitamin K is necessary for the species a. Lactobacillus spp. b. Bacillus anthracis c. Bacteroides melaninogenicus d. All of these
Last Answer : Ans: A
Description : The vitamin required for Lactobacillus species is a. Riboflavin b. Niacin c. Pyridoxine d. Folic acid
Last Answer : Ans: B
Description : Fermentation of milk to curd is due to (1) Mycobacterium (2) Staphylococcus (3) Lactobacillus (4) Yeast
Last Answer : (3) Lactobacillus Explanation: When milk is heated to a temperature of 30-40°C and a small amount of old curd added to it, the Lactobacillus (bacteria) in that curd sample gets activated and multiplies
Description : Which of the following microorganisms is used in milk curdli – (1) Acetobacter (2) Leticonost (3) Bacillus (4) Lactobacillus
Last Answer : (4) Lactobacillus Explanation: Lactobacillus is used in milk curdling. It is a genus of Gram positive facultative anaerobic or microaciophilic rodshaped bacteria.
Description : Which of the following can be used as a biocontrol agent in the treatment of plant disease? (a) Lactobacillus (b) Trichoderma (c) Chlorella (d) Anabaena
Last Answer : (b) Trichoderma
Description : In Yoghurt preparation — bacterial culture is used. a. Lactobacillus bulgaricus b. Streptococcus thermophilus c. Both a & b d. None of these
Last Answer : c. Both a & b
Description : Which organism is found in the acidic vagina of women of reproductive age? a. Candida albicans b. Lactobacillus c. Escherichia coli. d. Staphylococcus epidermidis
Last Answer : b. Lactobacillus
Description : Which of the following microorganism produces only L(+) - lactic acid without further racemization ? A.Leuconostoc mesenteroides B.Lactobacillus delbrueckii C.Rhizopus oryzae D.Lactobacillus bulgaricus
Last Answer : C.Rhizopus oryzae
Description : A patient comes with a lactobacillus of more than 100,000 - what is your advice: A. Reduce sugar in diet
Last Answer : A. Reduce sugar in diet
Description : ____ milk is a traditional milk fermented with Lactobacillus acidophilus (LA). a. Skim c. Acidophilus b. Whole d. Butter
Last Answer : c. Acidophilus
Description : What do you produce by adding Lactobacillus Bulgaricus to milk?
Last Answer : ANSWER: YOGURT
Description : Which of the following microorganisms is used in milk curdling? (1) Acetobacter (2) Leuconostoc (3) Bacillus (4) Lactobacillus
Last Answer : Lactobacillus
Description : Fermentation of milk to curd is due to : (1) Mycobacterium (2) Staphylococcus (3) Lactobacillus (4) Yeasts
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 : What is size of azotobacter?
Last Answer : Azotobacter's cells are large rods, at least 2 microns indiameter
Description : Azotobacter and Beijerinckia are the examples of (a) Symbiotic nitrogen-fixers (b) Non-symbiotic nitrogen-fixers (c) Ammonifying bacteria (d) Disease causing bacteria
Last Answer : Ans. ((b))
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.
Description : The Ti plasmid, is often used for making transgenic plants. The plasmid is found in (a) Azotobacter (b) Rhizobium of the roots of leguminous plants (c) Agrobacterium (d) Yeast as a 2 mm plasmid.
Last Answer : (c) Agrobacterium
Description : Which of the following is non-symbiotic biofertilizer? (a) Anabaena (b) Rhizobium (c) VAM (d) Azotobacter
Last Answer : (d) Azotobacter
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 : Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition? (a) Azotobacter (b) Aspergillus (c) Glomus (d) Trichoderma
Last Answer : (c) Glomus
Description : The citric acid is produced by (a) Candida utilis (b) Azotobacter suboxydans (c) Aspergillus niger (d) Streptococcus lactis.
Last Answer : (c) Aspergillus niger
Description : Azotobacter fixes atmospheric nitrogen in the soil by— (A) Symbiotically (B) Non-symbiotically (C) Both (A) and (B) (D) None of these
Last Answer : (A) Symbiotically
Description : One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of (a) violet and green light (b) indigo and green light (c) orange and yellow light (d) blue and red light.
Last Answer : (d) blue and red light.
Description : A non-photosynthetic aerobic nitrogen fixing soil bacterium is (a) Rhizobium (b) Clostridium (c) Azotobacter (d) Klebsiella.
Last Answer : (c) Azotobacter
Description : Which of the following is free-living aerobic non- photosynthetic nitrogen-fixing bacterium? (a) Nostoc (b) Azospirillum (c) Rhizobium (d) Azotobacter
Description : One of the free-living, anaerobic nitrogen-fixeris (a) Beijerinckia (b) Rhodospirillum (c) Rhizobium (d) Azotobacter.
Last Answer : b) Rhodospirillum
Description : A large number of organic compounds can be decomposed by (a) Azotobacter (b) Chemolithotrophs (c) Mycoplasma (d) Pseudomonas.
Last Answer : (b) Chemolithotrophs
Description : Azotobacter and Bacillus polymyxa are the examples of (a) pathogenic bacteria (b) decomposers (c) symbiotic N2 fixer (d) non-symbiotic N2 fixer.
Last Answer : (d) non-symbiotic N2 fixer
Description : Symbiotic nitrogen fixing bacteria is — a. Azotobacter b. Azospirillum c. Rhizobium d. None of these
Last Answer : c. Rhizobium
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 : Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition ? (1) Trichoderma (2) Azotobacter (3) Aspergillus (4) Glomus
Last Answer : (4) Glomus
Description : Who Discovered Penicillium ?
Last Answer : Penicillium was discovered by Alexander Fleming.
Last Answer : Penicillium of Fanzai State.
Last Answer : : Penicillium breeds by creating Conidia.