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Seventh Grade (Grade 7) Microbiology Questions

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Grade 7 Microbiology
Hyphae are branching threadlike tubes that make up bodies of unicellular organisms.
  1. True
  2. False
Grade 7 Microbiology
Bacteria, protists, viruses, and insects can all be vectors.
  1. True
  2. False
Grade 7 Microbiology
An endospore is a dormant form of a bacteria cell.
  1. True
  2. False
Grade 7 Microbiology
Conjugation results in bacteria that are genetically alike.
  1. True
  2. False
Grade 7 Microbiology
The process in which bacteria reproduce is called binary fission.
  1. True
  2. False
Grade 7 Microbiology
The study of organisms too small to see without a microscope is
  1. excretion.
  2. ingestion.
  3. respiration.
  4. microbiology.
Grade 7 Microbiology
A parasite is a protein on the outside of a virus.
  1. True
  2. False
Grade 7 Microbiology
An active virus that invades a cell and enters the lysogenic cycle causes the living host cell to die.
  1. True
  2. False
Grade 7 Microbiology
As a host cell reproduces, the hereditary material of the virus that has invaded the cell is also reproduced.
  1. True
  2. False
Grade 7 Microbiology
Flagellum is the food that bacteria consume.
  1. True
  2. False
Grade 7 Microbiology
Koch's Postulates state that if a microorganism is the causative agent of an infectious disease, it must be:
-present in every case of the disease, but absent from the healthy host;
-isolated and grown in pure culture;
-able to cause the disease when a pure culture is inoculated into a healthy host; and
-re-isolated from the host that was inoculated with the pure culture.
  1. True
  2. False
Grade 7 Microbiology
Coughing or sneezing can expel pathogens trapped by the mucous membranes.
  1. True
  2. False
Grade 7 Microbiology
Anaerobic bacteria, that old-earth scientists say were present within the first billion years of the Earth, can live in the absence of          oxygen         .
Grade 7 Microbiology
Fever makes it difficult for pathogens to reproduce or multiply.
  1. True
  2. False
Grade 7 Microbiology
Bacteria such as Lactobacillus bulgaricus, the bacteria found in yogurt, is not harmful to our bodies and is therefore known as a pathogen.
  1. True
  2. False
Grade 7 Microbiology
Anton van Leeuwenhoek was a German scientist who discovered single-celled organisms in droplets of pond water.
  1. True
  2. False
Grade 7 Microbiology
One way your body builds immunity is by being exposed to pathogens.
  1. True
  2. False
Grade 7 Microbiology
Phagocytes are white blood cells that kill invading pathogens.
  1. True
  2. False
Grade 7 Microbiology
Your body's ability to resist the pathogens that cause a particular disease is called vaccination.
  1. True
  2. False
Grade 7 Microbiology
Stomach acid is very helpful to pathogens that invade the body.
  1. True
  2. False
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