Bio 250 lab quiz 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Bio safety levels (BSL) measure what? - CORRECT ANSWER - an organisms
controllability, infectivity, virulence, pathogenicity, antibiotic resistance, vaccine, treatment,
mortality.
BSL 1 - CORRECT ANSWER - does not normally cause disease in people
BSL 2 - CORRECT ANSWER - Associated with disease
BSL 3 - CORRECT ANSWER - indigenous/exotic agents that may have serious or lethal
consequences and with potential for aerosol transmission
BSL 4 - CORRECT ANSWER - dangerous/exotic agents of a life-threatening nature or
unknown risk of transmission
Containment - CORRECT ANSWER - safe methods and procedures to handle micro
organisms
Aseptic technique prevents contamination of - CORRECT ANSWER - You
Others
Experiment
Work Area
External Enviroment
Ubiquitous - CORRECT ANSWER - found everywhere
Pathogen - CORRECT ANSWER - micro organisms that cause disease
, Opportunistic pathogen - CORRECT ANSWER - cause disease in right circumstances
Inoculation - CORRECT ANSWER - implantation of micro organisms on or in media
Culture - CORRECT ANSWER - cultivation of the micro organisms
What has actually grown
Turbid - CORRECT ANSWER - cloudy inoculation of growth
Colony - CORRECT ANSWER - A discrete mass of millions or more cells ideally from
one cell
Points of first few labs - CORRECT ANSWER - practice aseptic technique
Sterile - CORRECT ANSWER - completely free of all life
Pure culture - CORRECT ANSWER - one type of colony
Mixed culture - CORRECT ANSWER - more than one type of colony
Parfocal - CORRECT ANSWER - once its in focus it stays in focus as you move un in
magnification
Parcentric - CORRECT ANSWER - What is in the center will stay in the center
Why is oil needed for high magnification - CORRECT ANSWER - oil is needed to refract
light the same as glass does
Exam Questions and CORRECT Answers
Bio safety levels (BSL) measure what? - CORRECT ANSWER - an organisms
controllability, infectivity, virulence, pathogenicity, antibiotic resistance, vaccine, treatment,
mortality.
BSL 1 - CORRECT ANSWER - does not normally cause disease in people
BSL 2 - CORRECT ANSWER - Associated with disease
BSL 3 - CORRECT ANSWER - indigenous/exotic agents that may have serious or lethal
consequences and with potential for aerosol transmission
BSL 4 - CORRECT ANSWER - dangerous/exotic agents of a life-threatening nature or
unknown risk of transmission
Containment - CORRECT ANSWER - safe methods and procedures to handle micro
organisms
Aseptic technique prevents contamination of - CORRECT ANSWER - You
Others
Experiment
Work Area
External Enviroment
Ubiquitous - CORRECT ANSWER - found everywhere
Pathogen - CORRECT ANSWER - micro organisms that cause disease
, Opportunistic pathogen - CORRECT ANSWER - cause disease in right circumstances
Inoculation - CORRECT ANSWER - implantation of micro organisms on or in media
Culture - CORRECT ANSWER - cultivation of the micro organisms
What has actually grown
Turbid - CORRECT ANSWER - cloudy inoculation of growth
Colony - CORRECT ANSWER - A discrete mass of millions or more cells ideally from
one cell
Points of first few labs - CORRECT ANSWER - practice aseptic technique
Sterile - CORRECT ANSWER - completely free of all life
Pure culture - CORRECT ANSWER - one type of colony
Mixed culture - CORRECT ANSWER - more than one type of colony
Parfocal - CORRECT ANSWER - once its in focus it stays in focus as you move un in
magnification
Parcentric - CORRECT ANSWER - What is in the center will stay in the center
Why is oil needed for high magnification - CORRECT ANSWER - oil is needed to refract
light the same as glass does
