Description : Which kind of organisms will grow best in a candle jar? a. Aerobes b. Microaerophiles c. Anaerobes d. A-C are correct
Last Answer : b. Microaerophiles
Description : The organisms which can grow both in presence and absence of oxygen a. Aerobes b. Anaerobes c. Faculative anaerobes d. Strict aerobes
Last Answer : Ans: A
Description : Facultative anaerobes can live with or without _____ gas. a. carbon dioxide b. hydrogen c. nitrogen d. oxygen
Last Answer : d. oxygen
Description : Which micro-organisms in periapical lesion would you find microscopically: A. Aerobes B. Aerobes to mainly anaerobes
Last Answer : B. Aerobes to mainly anaerobes
Description : Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive ... inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity
Last Answer : B. Only anaerobes reduce it to generate the reactive nitro radical
Description : Bacteria that make either a fementative or respiratory set of enzymes are known as (a) Obligate anacerobes (b) Obligate aerobes (c) Microacerophiles (d) Facultative organisms
Last Answer : Ans: D
Description : The treatment of the following patient should include: a. Initial empiric therapy directed against both aerobes and anaerobes b. The addition of anti-fungal therapy in an elderly patient ... therapy is appropriate if the agents selected possess activity against both aerobic and anaerobic bacteria
Last Answer : Answer: a, e The primary treatment for a perforated viscus is surgical, however antimicrobial therapy is an extremely important adjunct. Empiric antibiotic therapy for secondary ... whereas longer periods are indicated for immunosuppressed patients and with patients with extensive contamination
Description : The biological process in which both aerobes and anaerobes degrade organic matter is - (1) Manuring (2) Composting (3) Digesting (4) Nitrifying
Last Answer : (2) Composting Explanation: Composting is the depomposition of plant remains and other once-living materials to make an earthy, dark, crumbly substance that is excellent for enriching soil. It is the chief way to recycle wastes.
Description : The biological process in which both aerobes and anaerobes degrade organic matter is (1) Manuring (2) Composting (3) Digesting (4) Nitrifying
Last Answer : Composting
Description : Prokaryotes that can withstand very high salt concentrations are called ___ a. Capnophiles b. Barophiles c. Halophiles d. Microaerophiles
Last Answer : c. Halophiles
Description : A medium would involve the addition of the antibiotic methicillin to identify methicillin-resistant bacteria. a. differential b. selective c. thioglycollate d. VBNC
Last Answer : b. selective
Description : Stringent anaerobes can be grown in a media by taking special measure as A.boiling the media for several minutes B.addition of cysteine C.passing through oxygen-free nitrogen D.any of these
Last Answer : D.any of these
Description : Stringent anaerobes can be grown in a media by taking special measure as A- boiling the media for several minutes B- addition of cysteine C- passing through oxygen-free nitrogen D- any of these
Last Answer : any of these
Description : Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture
Last Answer : d. tissue culture
Description : The maximum concentration of ethanol that is achieved by successive distillation of fermentation broth in continuous stills is A- .60% B- 95% C- .70% D- 99%
Last Answer : 95%
Description : Peptone water and nutrient broth are A- selective media B- enriched media C- basal media D- none of these
Last Answer : basal media
Description : Peptone water and nutrient broth are - - - - - - - type of media A Basal media B Specialized media C Deferential media D Enriched media
Last Answer : A Basal media
Description : _____ bacteria live as individuals and do not live in biofilms. a. Planktonic b. Anaerobic c. Aerobic d. Facultative anaerobic
Last Answer : a. Planktonic
Description : Following are the two statements regarding the origin of life. (A) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (B) The first autotrophic organisms were the chemoautotrophs that ... ) is correct but (B) is false. (d) (B) is correct but (A) is false.
Last Answer : (a) Both (A) and (B) are correct.
Description : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The first organisms were, pherhaps the chemoau
Last Answer : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The ... wrong D. If both As and R are wrong.
Description : Tissue tropism refers to a. what tissues grow due to a viral infection. b. what tissues are resistant to viral infection. c. what organisms a virus infects. d. what cells or tissues a virus infects.
Last Answer : d. what cells or tissues a virus infects.
Description : The compound that is added to the medium to absorb oxygen for the creation of anaerobic conditions a. Sodium Thioglycollate b. Nitrous acid c. Citrate d. None of these
Last Answer : Ans: B
Description : Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms
Last Answer : .yeasts
Description : The bacteria which are able to grow at 0°C but which grow at 20°C to 30°C, are known as a. Psychrophiles b. Facultative psychrophiles c. Average psychrophiles d. Mesophiles
Last Answer : Ans: C
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 organisms of diphtheria and ______ are known for their production of _______. a. Typhoid Fever; Antitoxins b. Typhoid Fever; Exotoxins c. Tetanus; Antitoxins d. Tetanus; Exotoxins
Last Answer : d. Tetanus; Exotoxins
Description : Which of the following is NOT one of the organisms that are in Protista? a. plant-like organisms b. animal-like organisms c. fungal-like organisms d. bacterial-like organisms
Last Answer : d. bacterial-like organisms
Description : Which one of the following statements about fungi is NOT true? a. Some fungi are dimorphic. b. Fungi have cell walls made of chitin. c. Fungi are photosynthetic organisms. d. Fungi consist of the yeasts and molds.
Last Answer : c. Fungi are photosynthetic organisms
Description : Which of the following organisms cause necrotizing fasciitis, or the flesh-eating disease? a. Group A streptococcus b. Group B streptococcus c. Staphylococcus aureus. d. strep viridins group
Last Answer : a. Group A streptococcus
Description : Of the hemolytic groups of streptococci, _____ is the most dangerous because the organisms completely destroy red blood cells. a. alpha hemolytic group b. the beta hemolytic group c. the gamma hemolytic d. strep viridins group
Last Answer : b. the beta hemolytic group
Description : : All the following are among the opportunistic organisms that may cause nosocomial disease except: a. Pseudomonas aeruginosa. b. Escherichia coli. c. Staphylococcus aureus. d. Mycobacterium leprae.
Last Answer : d. Mycobacterium leprae.
Description : Organisms that normally inhabit the body a. include Treponema pallidum. b. cause endogenous diseases. c. may be detected by Donovan bodies. d. resist the effects of antibiotics.
Last Answer : b. cause endogenous diseases.
Description : What is the term for manipulating the genes of organisms to introduce new characteristics? a. Genomics b. Genetic engineering c. Recombinant RNA d. Genetic resistance
Last Answer : b. Genetic engineering
Description : A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.
Last Answer : b. The Collective Genomes Of Many Organisms.
Description : Which of the following organisms have shown the ability of phosphate solubilization in red wine? A.S.cerevisiae B.Gluconobacter oxydans C.Bacillus subtilis D.None of these
Last Answer : B.Gluconobacter oxydans
Description : Cell theory includes all of the following except A.all organisms are composed of one or more cells B.the cell is the most primitive form of life C.the cell is the structural unit of life D.cells arise by division of preexisting cells
Last Answer : B.the cell is the most primitive form of life
Description : Organisms are parasitic and have a resistant spore with one to six coiled polar filaments belong to which phylum of Protozoa? A.Labyinthomorpha B.Sarcomastigophora C.Apicomplexa D.Myxozoa
Last Answer : D.Myxozoa
Description : The organisms responsible for the characteristic musty or earth odor of a freshly plowed fieldis/are A.Nocardia B.Streptomyces C.Micromonospora D.all of these
Last Answer : D.all of these
Description : Eukaryotic micro organisms include A- Protozoa B- .fungi C- Algae D- all of these
Last Answer : all of these
Description : .Living organisms have many complex characteristics. Which one of the following is shared by non- living matter as well? A-Homeostasis B- .Tissues C- .Reproduction D- Molecules
Last Answer : Molecules
Description : All membranes of free-living organisms have phospholipid bilayers, but exception is A- bacteria B- fungi C- archaea D- protozoa
Last Answer : archaea
Description : Cell theory includes all of the following except A- .all organisms are composed of one or more cells B- the cell is the most primitive form of life C- .the cell is the structural unit of life D- cells arise by division of preexisting cells
Last Answer : the cell is the most primitive form of life
Description : Evolutionary relationships between groups of organisms are determined using which of Thefollowing type of information? A- Comparisons of nucleotide sequences B- .Comparisons of biochemical pathways C- Comparisons of structural features D- All of the above
Last Answer : All of the above
Description : Living organisms have many complex characteristics. Which one of the following is sharedbynon-living matter as well?A- Homeostasis B- Tissues C- Reproduction D- Molecules
Description : The oldest eukaryotic organisms are considered to be A- diplomonads like Giardia B- archaea C- fungi D- animals
Description : What is a medium that contains ingredients that inhibit the growth of some organisms while allowing the growth of others? a. Differential b. General purpose c. Enriched d. Selective e. All the above
Last Answer : d. Selective
Description : Organisms that practice heterotrophy are able to synthesize their own food from _____. a. light b. simple carbon sources c. carbon monoxide d. oxygen gas
Last Answer : b. simple carbon sources
Description : In the 18th century Carl Linnaeus started classifying organisms based a. Similarities in form b. DNA c. RNA d. Enzymes
Last Answer : a. Similarities in form
Description : Which one of the following is not an organizational property common to all living organisms? a. Genetic organization b. Metabolic organization c. Compartmentation d. A cell nucleus
Last Answer : d. A cell nucleus