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