Viruses Quiz
Preview:
Which statement about viruses is true?
A. all viruses are latent
B. viruses are considered living things
C. all viruses contain DNA
D. viruses do not contain organelles
What are viruses made of?
A. fat molecules
B. DNA or RNA
C. eukaryotic cells
D. bacteria
Viruses are smaller than a cell.
A. TRUE
B. FALSE
Viruses are living things
A. TRUE
B. FALSE
Why is it that a virus that infects a human is not likely to infect a dog or a cat?
A. viruses only infect humans
B. viruses are specific to a host
C. dogs and cats do not get diseases
D. viruses do not infect living things
Antibiotics only work against what organisms ?
A. viruses
B. bacteria
C. prions
Viruses can´t __________ by themselves.
A. reproduce
B. communicate
C. die
D. infect people
The head of the bacteriophage sits on a long ____________.
A. DNA
B. tail fibers
C. tail
A vaccine triggers your body to produce _____________ which help fight infections.
A. antibiotics
B. antibodies
C. antigens
The single deadliest entity on Earth is the ______________.
A. bacteria
B. bacteriophage
C. antibiotic
Viruses are difficult to treat because they
A. take too long to reproduce
B. are constantly changing
C. are too big
D. have a cell wall
For a virus to reproduce and live, it MUST
A. live in a damp, dark area
B. live inside a host
C. remain hidden
D. breathe oxygen
A virus is made up of
A. cells
B. protein coat
C. genetic material and protein coat
D. bricks
A disease that occurs over a wide geographical area and affects a large proportion of the population is a(n)
A. pandemic
B. epidemic
C. natural disaster
D. plague
Spherical, complex, cylindrical, and polyhedral are all
A. types of viruses
B. life cycles of viruses
C. viruses that infect only animals
D. shapes of viruses
There are more bacteriophages on Earth than any other organism combined
A. TRUE
B. FALSE
___________________________ develops when a mother passes antibodies to her unborn baby.
A. natural immunity
B. codependency
C. natural selection
What do viruses stimulate the production of in your body?
A. antibodies
B. proteins
C. DNA and RNA
D. a nucleus
Which of the following is a true statement about viruses?
A. viruses are smaller than bacteria
B. viruses are only treated with antibiotics
C. most viruses are saprotrophs
D. all viruses are multicellular
Which of the following is one important difference between a virus and a bacterial cell?
A. a virus is much larger in size than a bacterial cell
B. a virus always causes more severe disease than a bacterial cell
C. a virus can never reproduce on its own, but a bacterial cell can
D. a virus does not contain genetic material, but a bacterial cell does
Up to what percentage (%) of bacteria are killed by bacteriophages every day.
A. 40%
B. 35%
C. 43%
cell in which a virus reproduces
A. endospore
B. host cell
C. bacteriophage
D. plasmid
______________________________ doses of the flu vaccine in the United States has been given (October 2019).
A. 16 Million
B. 6 Million
C. 116 Million
Viruses are considered nonliving because they
A. contain too much protein
B. do not have a specific shape
C. cannot be exposed to light
D. do not have ALL of the characteristics of living things
nonliving particle that can reproduce within a living cell
A. endospore
B. virus
C. vacuole
D. nucleus
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