A) A defined medium with just enough ingredients to support growth B) A complex medium used for human cells C) A medium that forbids all bacterial growth D) A medium containing only amino acids
A) Carbon sources B) Water C) Salts D) Amino acids
A) Wild-type B) Pathogenic viruses C) Only Gram-negative bacteria D) Mutated animal cells
A) Glucose B) Ampicillin C) Neomycin D) Tetracycline
A) Antibiotics and dyes B) Proline and histidine C) Glucose and sucrose D) Magnesium, nitrogen, phosphorus, and sulfur
A) Growing wild-type microorganisms exclusively B) Killing all bacteria in a sample C) Culturing specific lines of auxotrophic recombinants D) Replacing water in the growth process
A) Preventing all bacterial metabolism B) Growing all types of bacteria equally C) Measuring the concentration of water D) Growth of only selected microorganisms
A) Penicillin and aspirin B) Ampicillin or tetracycline C) Gancyclovir and neomycin D) Nalidixic acid and colistin
A) Exconjugant B) Recombinant C) Auxotroph D) Marker
A) Glucose B) Neomycin C) Histidine D) Proline
A) Gancyclovir B) Neomycin C) Tetracycline D) Ampicillin
A) Dyes B) Salt C) Glucose D) Agar
A) Lack of water B) High salt concentration C) High antibiotic content D) Low pH
A) Fungi only B) Gram-positive bacteria C) Gram-negative bacteria D) Virus isolation
A) Histidine B) Glucose C) Proline D) Salts
A) Legionella B) Gram-negative bacteria C) Staphylococci D) Mannitol
A) Buffered charcoal yeast extract agar B) Sabouraud agar C) MacConkey agar D) Baird-Parker agar
A) Gram-positive staphylococci B) Legionella pneumophila C) Ectomycorrhizal fungi D) Moulds and yeasts
A) Lack of nitrogen B) High salt concentration C) Low pH and high glucose D) Presence of antibiotics only
A) To restrict the growth of mould colonies B) To provide nitrogen to the fungi C) To kill all yeast cells D) To increase the pH of the medium
A) MMN and BAF medium B) Baird-Parker and DRBC C) CNA and Sabouraud D) MacConkey and Hektoen
A) To kill all Gram-positive bacteria B) To act as a carbon source C) To inhibit Gram-negative organisms D) To promote the growth of mould
A) It contains yeast extract B) All chemicals used are known C) It contains animal tissue D) The exact composition is unknown
A) Salts B) Plant tissue C) Glucose D) Water
A) Animal blood B) Water C) Antibiotics D) Plant hormones
A) Sterile air chambers B) Natural soil samples C) Laboratory culture collections D) Defined synthetic environments
A) Cell apoptosis B) Cell proliferation C) Cell desiccation D) Cell mutation
A) Zea mays B) Physcomitrella patens C) Arabidopsis thaliana D) Oryza sativa
A) Autotrophic microbes B) Obligate intracellular parasites C) Facultative anaerobes D) Extracellular saprophytes
A) Staphylococcus B) Escherichia C) Streptococcus D) Bacillus
A) Colloidal suspensions B) Sedimentary layers C) Crystalline structures D) Biofilm mats
A) Agarose B) Glucose only C) Blood serum D) Ammonium salts
A) Must B) Mash C) Wort D) Tincture
A) Lactic acid B) Hydrogen gas C) Alcohol D) Acetic acid
A) Ubiquitous B) Fastidious C) Autotrophic D) Opportunistic
A) Storing specimens for long periods B) Preventing microbial multiplication C) Distinguishing one microorganism type from another D) Supporting fastidious organisms only
A) Sodium chloride B) Neutral red C) Glycerol D) Charcoal
A) Opaque B) Red C) Transparent D) Brown
A) Red B) Transparent C) Blue D) Brown
A) Enteric bacilli B) Strict anaerobes C) Gonococci D) Lac operon mutants
A) Lactose B) Glycerol C) Molecular oxygen D) Charcoal
A) Bacterial inhibitors B) Carbon-free buffers C) Reducing agents D) Extra nutrients
A) 20–25 °C B) 40–45 °C C) 60–65 °C D) 80–85 °C
A) Mannitol fermentation B) Lactose fermentation C) Beta-hemolysis D) Anaerobic growth
A) Fastidious aerobes B) Enteric bacilli C) Strict anaerobes D) Lac operon mutants
A) Increased metabolic rate B) Active fermentation C) Viability D) High concentration
A) Contamination issues B) Inability to support cell growth C) Insufficient glucose levels D) Lack of growth factors
A) Serum-free media B) Fetal bovine serum C) Animal-derived medium D) Serum-containing media
A) It prevents the production of proteins B) It determines the genetic sequence of the protein C) It eliminates the need for purification D) It influences therapeutic characteristics like glycosylation
A) Media used only for bacterial cultures B) Chemically undefined media C) Serum-containing growth media D) Media that represent physiological nutrient levels |