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.
FALSE
B.
TRUE
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.
FALSE
B.
TRUE
Question #3
The microorganisms that live in or on the human body are called the ______.
A.
prokaryotes
B.
recombinants
C.
archaea
D.
microbiome
Question #4
Only two of the main types of microorganisms are found in or on the normal healthy human body.
A.
FALSE
B.
TRUE
Question #5
Microorganisms have adapted to nearly every environment through the process of ______.
A.
recombinant DNA technology
B.
bioremediation
C.
ubiquity
D.
evolution
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.
WHO
B.
DHHS
C.
UN
D.
CDC
Question #7
Global pandemics are tracked by epidemiologists at the _______.
A.
DHHS
B.
CDC
C.
WHO
D.
UN
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.
TRUE
B.
FALSE
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.
FALSE
B.
TRUE
Question #10
A phospholipid is one type of triglyceride.
A.
TRUE
B.
FALSE
Question #11
What does the prefix "hydro-" mean?
A.
Oily
B.
Dense
C.
Water
D.
Loving
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.
Lipids
B.
Carbohydrates
C.
Nucleic acids
D.
Salts
Question #13
What structure composed partly of protein is involved in translation, resulting in the production of more proteins?
A.
Lysosomes
B.
Nucleus
C.
Ribosomes
D.
Mitochondria
Question #14
DNA leads to RNA, which can lead to the creation of ________.
A.
oxygen
B.
cells
C.
lipids
D.
proteins
Question #15
The correct structure of DNA components can be presented as ________.
A.
phosphate–sugar–phosphate–base
B.
base–sugar–phosphate–base
C.
base–phosphate–sugar
D.
phosphate–base–sugar
E.
phosphate–sugar–base
Question #16
Which of the following is a characteristic of double-stranded DNA?
A.
10 base pairs per turn
B.
2 nanometers in width, 10 base pairs per turn, and 0.34 nanometers per full turn
C.
2 nanometers in width and 10 base pairs per turn
D.
0.34 nanometers per full turn
E.
2 nanometers in width
Question #17
Which of the following DNA molecules is the most stable?
A.
GAAATTTC CTTTAAAG
B.
AGTCGAAT TCAGCTTA
C.
CTGCATAC GACGTATG
D.
GGATCCTG CCTAGGAC
E.
GCGTGCAC CGCACGTGC
Question #18
Asymmetrical spacing of the backbones of the DNA double helix generates major and minor grooves.
A.
FALSE
B.
TRUE
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