QUESTIONS WITH CORRECT ANSWERS
Each of the following organisms would be considered a microbe except:
a) bacterium
b) mushroom
c) virus
d) yeast
e) protozoan
c) virus
The term used to describe a disease-causing microorganism is
a) microbe
b) pathogen
c) bacterium
d) infection
e) virus
b) pathogen
What factors contribute to the rising incidence of antibiotic resistance?
random mutations, overuse, and misuse of specific drug
In the name staphylococcus aureus, staphylococcus is the
genus
A prokaryotic cell may possess each of the following cellular components
except
a nucleus
True or false? The process of pasteurization to reduce food spoilage utilizes
high heat to kill all bacteria present.
false
True or false? Spontaneous generation refers to living cells arising only from
other living cells.
false
, True or false? A student has obtained a sample of pond water for study. Using
the high-power lens, he observes several cells with nuclei. He can conclude
that the cells are not bacteria.
true
True or false? All cells possess a cell wall
false
True or false? The first antibiotic was discovered by Paul Ehrlich
false
True or false? Microbes are associated with life-sustaining benefits as well as
life-threatening diseases
true
True or false? Individual covalent bonds are stronger than ionic bonds
true
True or false? A basic solution is expected to contain more hydrogen ions
than hydroxyl ions
false
True or false? Carbon dioxide is an organic molecule
false
True or false? All forms of life function optimally at a pH of 7
False
True or false? The counterstain used in the Gram stain is a basic dye
true
True or false? In a completed Gram stain, gram-positive bacteria are purple
true
True or false? the highest magnification that is achieved in the compound light
microscope 1000x
true
The capsules and flagella of bacteria can be observed in Gram-stain smears
false
True or false? The acid-fast stain is not important in a hospital laboratory
false
True or false? Pasteur disproved spontaneous generation
true
True or false? Koch proved that microorganisms can cause disease