BIO 205 TEST 1 CH1-5 EXAM
QUESTIONS & ANSWERS 100%
CORRECT (FULLY SOLVED)
____________ bacteria retain the purple stain after the
decolorization step; ______________ bacteria do not and
thus appear pink from the counterstain with the Gram
Staining protocol. - correct answer- Gram
positive, Gram negative
____________ staining procedure is an example of
negative staining - correct answer- capsule
(Negative staining is like the negative of photography. The
capsule doesn't stain but we contrast the capsule by
staining everything else)
______________________ advocated the practice of
handwashing; this helped reduce childbirth mortality in
new mothers - correct answer- Ignaz
Semmelweis
,__________staining is used to make microbial capsules
visible. - correct answer- Negative (staining)
by contrasting the hard to stain capsules against the easy
to stain background. They appear clear/white/transparent
A ___________is a thin film of material used for
microscopic examination. Heat is used to _____ bacteria
to the slide - correct answer- smear, fix
A 'magic bullet' is a drug that affects the pathogen more
than the host (T/F) - correct answer- True
A nonliving proteinaceous infectious agent that cause
Mad Cow Disease is: - correct answer- prion
A pioneer in the development of chemotherapy who
discovered the drug salvarsan________ - correct
answer- Paul Ehrlich
, Bacteria are negatively charged, and the colored positive
ion of a __________ dye will color the cells - correct
answer- basic dye ( Gram Negative is dyed red)
(Gram Positive is dyed purple)
Bacteria store substances such as phosphate, lipids etc. in
the form of: - correct answer- granules called
reserve deposits
Bacterial plasma membrane mainly consists of
___________________________. - correct
answer- phospholipid bilayer and proteins
By using which of the following helpers can a cell
transport solutes whose concentrations are more on the
inside than on the outside - correct answer-
protein carriers and ATP
Because it will require energy in order to accomplish
going against a gradient
QUESTIONS & ANSWERS 100%
CORRECT (FULLY SOLVED)
____________ bacteria retain the purple stain after the
decolorization step; ______________ bacteria do not and
thus appear pink from the counterstain with the Gram
Staining protocol. - correct answer- Gram
positive, Gram negative
____________ staining procedure is an example of
negative staining - correct answer- capsule
(Negative staining is like the negative of photography. The
capsule doesn't stain but we contrast the capsule by
staining everything else)
______________________ advocated the practice of
handwashing; this helped reduce childbirth mortality in
new mothers - correct answer- Ignaz
Semmelweis
,__________staining is used to make microbial capsules
visible. - correct answer- Negative (staining)
by contrasting the hard to stain capsules against the easy
to stain background. They appear clear/white/transparent
A ___________is a thin film of material used for
microscopic examination. Heat is used to _____ bacteria
to the slide - correct answer- smear, fix
A 'magic bullet' is a drug that affects the pathogen more
than the host (T/F) - correct answer- True
A nonliving proteinaceous infectious agent that cause
Mad Cow Disease is: - correct answer- prion
A pioneer in the development of chemotherapy who
discovered the drug salvarsan________ - correct
answer- Paul Ehrlich
, Bacteria are negatively charged, and the colored positive
ion of a __________ dye will color the cells - correct
answer- basic dye ( Gram Negative is dyed red)
(Gram Positive is dyed purple)
Bacteria store substances such as phosphate, lipids etc. in
the form of: - correct answer- granules called
reserve deposits
Bacterial plasma membrane mainly consists of
___________________________. - correct
answer- phospholipid bilayer and proteins
By using which of the following helpers can a cell
transport solutes whose concentrations are more on the
inside than on the outside - correct answer-
protein carriers and ATP
Because it will require energy in order to accomplish
going against a gradient
