All versions of exam 3 categorized by question types 2024-2025 BIOD 171 Microbiology Portage
learning division Geneva college
Question type breakdown
True and false:
Matching, fill in the blank, multiple choice and short answer: *refer to answer key for short answer
questions, however, examinees are strongly encouraged to answer them in their own words.
Good luck!
True and false
A cell that is adherent, flat (thin), and unstained is easily identified using bright field microscopy. False
Staining is often required to image a cell that is adherent and flat (thin). True
A nanometer is longer than a micrometer. False
The distinguishing characteristic of gram-negative bacteria is the presence of LPS in the outer
membrane. True
If you wish to study the motility of an organism you cannot heat fix, but you can chemically fix the
specimen. False
Following the decolorization step of gram stain, gram-negative bacteria will appear colorless. True
A Giemsa stain can be used to determine the presence of pathogenic bacteria. True
If a patient is suspected of having malaria, a Giemsa stain would be an appropriate differential test to
perform. True
Growth media is best suited for distinguishing between two similar species of bacteria. False
LB agar is classified as a selective, non-differential media. False
LB agar is classified as a non-selective, non-differential media. True
learning division Geneva college
Question type breakdown
True and false:
Matching, fill in the blank, multiple choice and short answer: *refer to answer key for short answer
questions, however, examinees are strongly encouraged to answer them in their own words.
Good luck!
True and false
A cell that is adherent, flat (thin), and unstained is easily identified using bright field microscopy. False
Staining is often required to image a cell that is adherent and flat (thin). True
A nanometer is longer than a micrometer. False
The distinguishing characteristic of gram-negative bacteria is the presence of LPS in the outer
membrane. True
If you wish to study the motility of an organism you cannot heat fix, but you can chemically fix the
specimen. False
Following the decolorization step of gram stain, gram-negative bacteria will appear colorless. True
A Giemsa stain can be used to determine the presence of pathogenic bacteria. True
If a patient is suspected of having malaria, a Giemsa stain would be an appropriate differential test to
perform. True
Growth media is best suited for distinguishing between two similar species of bacteria. False
LB agar is classified as a selective, non-differential media. False
LB agar is classified as a non-selective, non-differential media. True
