Microbiology Straighterline questions and
answers 2024
Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that
inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits.
These antitoxins (antibodies) are the basis of...
a. humoral immunity
b. cell-mediated immunity
c. antibiotic immunity
d. phagocyte-mediated immunity - correct answer ✅a. humoral immunity
Who of the following first discovered that some blood leukocytes could engulf
disease-causing bacteria?
a. von Behring
b. Meister
c. Metchnikoff
d. Ivanowski - correct answer ✅c. Metchnikoff
Who is credited with developing a vaccine against chicken cholera?
,Microbiology Straighterline questions and
answers 2024
a. Koch
b. Pasteur
c. Jenner
d. Lister - correct answer ✅b. Pasteur
The concept that living organisms arise from nonliving material is called...
a. biogenesis
b. cell theory
c. spontaneous generation
d. germ theory - correct answer ✅c. spontaneous generation
Protists contain all of the following forms of life EXCEPT...
a. protozoa
b. fungi
c. slime molds
d. algae - correct answer ✅b. fungi
,Microbiology Straighterline questions and
answers 2024
Cells with a relatively simple cell morphology that do not have a true membrane-
delimited nucleus are called...
a. prokaryotes
b. eukaryotes
c. urkaryotes
d. nokaryotes - correct answer ✅a. prokaryotes
The ribosomal RNA studies that led to the division of prokaryotic organisms into
the Bacteria and the Archaea were begun by...
a. Pasteur
b. Woese
c. Needham
d. Watson - correct answer ✅b. Woese
In a search for new antibiotics, a previously unknown organism has been
recovered from the soil. It is nonmotile and is composed of long threadlike
, Microbiology Straighterline questions and
answers 2024
structures formed from nucleated cells. It is not-photosynthetic and absorbs its
nutrients. This organism will most likely be classified among the...
a. bacteria
b. archaea
c. eukaryotes (fungi)
d. eukaryotes (protozoa)
e. eukaryotes (algae) - correct answer ✅c. eukaryotes (fungi)
If immersion oil was replaced with water, what would happen?
a. The refractive index would increase, improving resolution
b. The refractive index of water would be greater than air but less than oil,
improving resolution less than oil.
c. The refractive index of water would be less than that of air, decreasing
resolution.
d. There would be no difference. - correct answer ✅b. The refractive index of
water would be greater than air but less than oil, improving resolution less than
oil.
answers 2024
Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that
inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits.
These antitoxins (antibodies) are the basis of...
a. humoral immunity
b. cell-mediated immunity
c. antibiotic immunity
d. phagocyte-mediated immunity - correct answer ✅a. humoral immunity
Who of the following first discovered that some blood leukocytes could engulf
disease-causing bacteria?
a. von Behring
b. Meister
c. Metchnikoff
d. Ivanowski - correct answer ✅c. Metchnikoff
Who is credited with developing a vaccine against chicken cholera?
,Microbiology Straighterline questions and
answers 2024
a. Koch
b. Pasteur
c. Jenner
d. Lister - correct answer ✅b. Pasteur
The concept that living organisms arise from nonliving material is called...
a. biogenesis
b. cell theory
c. spontaneous generation
d. germ theory - correct answer ✅c. spontaneous generation
Protists contain all of the following forms of life EXCEPT...
a. protozoa
b. fungi
c. slime molds
d. algae - correct answer ✅b. fungi
,Microbiology Straighterline questions and
answers 2024
Cells with a relatively simple cell morphology that do not have a true membrane-
delimited nucleus are called...
a. prokaryotes
b. eukaryotes
c. urkaryotes
d. nokaryotes - correct answer ✅a. prokaryotes
The ribosomal RNA studies that led to the division of prokaryotic organisms into
the Bacteria and the Archaea were begun by...
a. Pasteur
b. Woese
c. Needham
d. Watson - correct answer ✅b. Woese
In a search for new antibiotics, a previously unknown organism has been
recovered from the soil. It is nonmotile and is composed of long threadlike
, Microbiology Straighterline questions and
answers 2024
structures formed from nucleated cells. It is not-photosynthetic and absorbs its
nutrients. This organism will most likely be classified among the...
a. bacteria
b. archaea
c. eukaryotes (fungi)
d. eukaryotes (protozoa)
e. eukaryotes (algae) - correct answer ✅c. eukaryotes (fungi)
If immersion oil was replaced with water, what would happen?
a. The refractive index would increase, improving resolution
b. The refractive index of water would be greater than air but less than oil,
improving resolution less than oil.
c. The refractive index of water would be less than that of air, decreasing
resolution.
d. There would be no difference. - correct answer ✅b. The refractive index of
water would be greater than air but less than oil, improving resolution less than
oil.
