Microbiology 020 - General Microbiology » Fall 2021 » Introduction to Microbes
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Question #1
There are many different sterile environments on planet Earth.
A.
TRUE
B.
FALSE
Question #2
Swabbing the surface of your skin anywhere on your body and culturing that sample in the lab is likely to result in the growth of millions of bacterial cells on the culture plate, even if you practice good hygiene.
A.
TRUE
B.
FALSE
Question #3
The microorganisms that live in or on the human body are called the ______.
A.
microbiome
B.
recombinants
C.
prokaryotes
D.
archaea
Question #4
Only two of the main types of microorganisms are found in or on the normal healthy human body.
A.
TRUE
B.
FALSE
Question #5
Microorganisms have adapted to nearly every environment through the process of ______.
A.
ubiquity
B.
bioremediation
C.
evolution
D.
recombinant DNA technology
Question #6
If a large outbreak of food poisoning occurred in the United States, epidemiologists from which governmental agency would be involved in collecting data and determining the source of the infections?
A.
CDC
B.
UN
C.
WHO
D.
DHHS
Question #7
Global pandemics are tracked by epidemiologists at the _______.
A.
DHHS
B.
UN
C.
CDC
D.
WHO
Question #8
Our understanding of epidemiology has led to a decreased mortality rate from infectious disease, but there are still infectious diseases in the list of top ten causes of death.
A.
FALSE
B.
TRUE
Question #9
From 1900 to 2000, the development of antibiotics and vaccination campaigns had the largest impact on the mortality rate from infectious disease.
A.
TRUE
B.
FALSE
Question #10
A phospholipid is one type of triglyceride.
A.
TRUE
B.
FALSE
Question #11
What does the prefix "hydro-" mean?
A.
Loving
B.
Dense
C.
Oily
D.
Water
Question #12
Which type of macromolecule combines with proteins to make compounds such as peptidoglycan and other types of identifying compounds found in the cell membrane?
A.
Salts
B.
Nucleic acids
C.
Carbohydrates
D.
Lipids
Question #13
What structure composed partly of protein is involved in translation, resulting in the production of more proteins?
A.
Ribosomes
B.
Lysosomes
C.
Nucleus
D.
Mitochondria
Question #14
DNA leads to RNA, which can lead to the creation of ________.
A.
lipids
B.
proteins
C.
cells
D.
oxygen
Question #15
The correct structure of DNA components can be presented as ________.
A.
phosphate–sugar–base
B.
base–sugar–phosphate–base
C.
phosphate–sugar–phosphate–base
D.
base–phosphate–sugar
E.
phosphate–base–sugar
Question #16
Which of the following is a characteristic of double-stranded DNA?
A.
2 nanometers in width and 10 base pairs per turn
B.
0.34 nanometers per full turn
C.
2 nanometers in width
D.
10 base pairs per turn
E.
2 nanometers in width, 10 base pairs per turn, and 0.34 nanometers per full turn
Question #17
Which of the following DNA molecules is the most stable?
A.
GCGTGCAC CGCACGTGC
B.
GAAATTTC CTTTAAAG
C.
GGATCCTG CCTAGGAC
D.
CTGCATAC GACGTATG
E.
AGTCGAAT TCAGCTTA
Question #18
Asymmetrical spacing of the backbones of the DNA double helix generates major and minor grooves.
A.
TRUE
B.
FALSE
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