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Tenth Grade (Grade 10) Microbiology Questions

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Grade 10 Microbiology
A virus cannot reproduce on its own therefore it is not really a living thing.
  1. True
  2. False
Grade 10 Microbiology
Which of these causes the common cold?
  1. bacterium.
  2. virus.
  3. protozoan.
  4. yeast.
Grade 10 Microbiology
Which viral reproductive cycle causes release of viruses to environment (reads the virus genetic material and makes copies of genes and builds capsids and then assembles new viruses until they escape)?
  1. lysogenic
  2. lytic
  3. lysomes
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
Which disease is Infectious?
  1. Allergies
  2. HIV
  3. Asthma
  4. Diabetes
Grade 10 Microbiology
Viruses are a                .
  1. lipid
  2. carb
  3. nucleic acid
  4. protein
Grade 10 Microbiology
The structure around a virus is called a                .
  1. membrane
  2. wall
  3. capsid
Grade 10 Microbiology
There are four ways a bacterium can become resistant to antibiotics. What are they?
  1. conjugation
  2. reproduction
  3. transformation
  4. transduction
  5. mutation
  6. elimination
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
Viruses are cells.
  1. True
  2. False
Grade 10 Microbiology
This viral life cycle is when virus genetic material is integrated with the cell’s info (viruses trick the cell into taking them inside where they will trick the cell into expressing viral genes that code those proteins that make up the virus, reproducing itself ).
  1. lysogenic
  2. lytic
Grade 10 Microbiology
Which group(s) of microorganisms is (are) thought to be the oldest living organisms?
  1. eukaryotes
  2. heterotrophic prokaryotes
  3. viruses
  4. autotrophic prokaryotes
Grade 10 Microbiology
In a lysogenic cycle, a virus enters the host cell,makes copies of itself, and then destroys the cell to release the new viruses.
  1. True
  2. False
Grade 10 Microbiology
Viruses are                 than cells.
  1. larger
  2. smaller
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
Viruses are not alive because                                                   .
  1. rely on cells to carry out many of their functions
  2. can’t reproduce on their own
  3. can't move
Grade 10 Microbiology
What does Lactococcus thermophilus and Lactococcus bulgaricus do in yogurt culture?
  1. The starter culture produces lactic acid and acetaldehyde
  2. When mixed with O-Culture can be use in Mozzarella and Feta
  3. The acetaldehyde give yogurt its characteritic flavor
  4. A and B
  5. A and C
  6. all of the above
Grade 10 Microbiology
What must be added to acidify the milk so that the rennet will work?
  1. wax
  2. bacteria
  3. casein
  4. food coloring
Grade 10 Microbiology
Organisms classified as halophiles "love" which of these?
  1. acid.
  2. cold.
  3. heat.
  4. salt.
Grade 10 Microbiology
The optimum growth temperature for O-Culture bacteria and DL-Culture bacteria are 20-30 degrees C.
  1. True
  2. False
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