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Tenth Grade (Grade 10) Microbiology Questions

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Grade 10 Microbiology
Which pathogen causes the common cold?
  1. bacterium
  2. virus
  3. protozoan
  4. yeast
Grade 10 Microbiology
What kind of genetic material is found in different types of viruses?
  1. DNA only
  2. RNA only
  3. DNA and RNA
  4. nucleosomes
Grade 10 Microbiology
What process do bacteria generally use for reproduction?
  1. meiosis
  2. mitosis
  3. binary fission
  4. conjugation
Grade 10 Microbiology
On the diagram of the euglena, what is the primary function of structure B?
Euglena Without Text Labels
  1. protection
  2. reproduction
  3. homeostasis
  4. photosynthesis
Grade 10 Microbiology
Which disease is infectious?
  1. allergies
  2. HIV
  3. asthma
  4. diabetes
Grade 10 Microbiology
What is a microorganism?
  1. a toxin that harms body cells
  2. a living body that is not visible to the naked eye
  3. a foreign object that injures the body
  4. a practice that prevents disease
Grade 10 Microbiology
A virus consists of a protein coat and
  1. DNA or RNA.
  2. a liquid membrane.
  3. cytoplasm.
  4. a flagellum.
Grade 10 Microbiology
The outer protein coat of a virus is a
  1. core of DNA.
  2. core of RNA.
  3. capsid.
  4. membrane envelope.
Grade 10 Microbiology
How do viruses reproduce?
  1. by exposure to light and water
  2. by osmosis
  3. by invading living cells
  4. by invading dead cells
Grade 10 Microbiology
Bacteria often contain small circular molecules of DNA known as
  1. clones.
  2. restriction enzymes.
  3. plasmids.
  4. hybrids.
Grade 10 Microbiology
HIV is the virus that causes the disease AIDS. It is a special kind of virus because it replicates itself in a backward fashion compared to other viruses. What kind of virus is HIV because of this behavior?
  1. retrovirus
  2. hantavirus
  3. temporal virus
  4. latent virus
Grade 10 Microbiology
What is a prion?
  1. a cure for an infectious disease
  2. a protein that directly causes a disease
  3. a piece of DNA that is used to create more viruses
  4. a covering that surrounds the genetic material of a virus
Grade 10 Microbiology
Which of these is required for a bacteriophage to infect a bacterial cell?
  1. There needs to be a tolerable temperature in the environment.
  2. The bacterial cell needs to have the proper receptor proteins on its surface.
  3. The bacteriophage needs to have been created within the previous 24 hours.
  4. There needs to be adequate energy stored within the bacteriophage for it to inject its genetic material.
Grade 10 Microbiology
How is sexual reproduction possible in a bacterium?
  1. DNA is transferred from one organism to another.
  2. Each bacterium can split itself in half.
  3. Bacteria have reproductive organs similar to those of mammals.
  4. Egg cells from one bacterium are released into the air to be fertilized by sperm.
Grade 10 Microbiology
How do Gram-positive bacteria differ from Gram-negative bacteria?
  1. Gram-positive bacteria are much larger than those that are Gram-negative.
  2. Gram-positive bacteria are useful to humans, while Gram-negative ones are pathogenic.
  3. Gram-positive bacteria have a thick cell wall, while Gram-negative bacteria lack a cell wall.
  4. Gram-positive bacteria have longer flagella than those that are Gram-negative.
Grade 10 Microbiology
What is the protein coat that covers the genetic material of a virus?
  1. cell wall
  2. cell membrane
  3. capsid
  4. dermal layer
Grade 10 Microbiology
Bacteriophages are
  1. tiny bacteria.
  2. enzymes.
  3. coils of RNA.
  4. viruses.
Grade 10 Microbiology
Where do the organisms in the domain Archaea live?
  1. only in volcanoes
  2. grassy knolls
  3. harsh environments
  4. the rainforest
Grade 10 Microbiology
Organisms classified as halophiles "love"
  1. acid.
  2. cold.
  3. heat.
  4. salt.
Grade 10 Microbiology
Which viral reproductive cycle causes the release of viruses to the environment after the attacked cell reads the viral genetic material, makes copies of the viral genes, builds capsids, and assembles new viruses?
  1. lysogenic
  2. lytic
  3. lysosome
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