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Ninth Grade (Grade 9) Health and Medicine Questions

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Grade 9 Microbiology
What is the process by which one strain of bacteria is changed into another?
  1. evolution
  2. mutation
  3. promotion
  4. transformation
Grade 9 Microbiology
Once inside a cell, the virus instructs the cell to produce more viruses. When the cell is full of new viruses, it bursts open and dies.
  1. True
  2. False
Grade 9 Fitness
Muscular endurance is the
  1. muscles' ability to work for a long time without tiring
  2. same as cardiorespiratory fitness
  3. amount of force a muscle can exert
  4. same as body strength
Grade 9 Microbiology
What uses conjugation to share genetic material?
  1. viruses
  2. archeae
  3. starfish
  4. bacteria
Grade 9 Microbiology
              Penicillium              is the mold that makes a powerful bacteria-killing antibiotic.
Grade 9 Microbiology
A virus enters the cell, makes copies of itself, and causes the cell to lyse during a                 infection.
  1. bacterial
  2. lysic
  3. lysogenic
  4. lytic
Grade 9 Microbiology
Sweat and skin secretions contain a mixture of molecules that kills or limits the growth of many types of microbes. This action to control microbes is an example of
  1. a nonspecific defense against infection.
  2. an enzyme-catalyzed biochemical reaction.
  3. a specific immune response to infection by microbes.
  4. physically blocking pathogens from entering the body.
Grade 9 Microbiology
Unicellular organisms contain many cells.
  1. True
  2. False
Grade 9 Microbiology
Where do bacteria live?
  1. anywhere
  2. in volcanoes
  3. in salty water
  4. almost anywhere
Grade 9 Microbiology
Hidden viruses enter a cell and immediately begin to multiply.
  1. True
  2. False
Grade 9 Microbiology
The smallest living things are single organisms.
  1. True
  2. False
Grade 9 Microbiology
Viral DNA is integrated into the DNA of the infected cell (host cell) in a                 infection.
  1. lysic
  2. lysogenic
  3. lytic
  4. prophasic
Grade 9 Microbiology
The protein coat of a virus contains the genetic material that allows it to make new viruses.
  1. True
  2. False
Grade 9 Microbiology
The protein coat that surrounds the nucleic acids in a virus is the
  1. capsid.
  2. peptidoglycan.
  3. plasma membrane.
  4. virophage.
Grade 9 Fitness
In order to get the most benefits from exercise with the least amount of risk, you should:
  1. Exercise at a high intensity such as sprinting or running
  2. Exercise at a moderate intensity such as brisk walking, swimming, or cycling
  3. Exercise at a low intensity
  4. The intensity doesn't matter, and has nothing to do with exercise
Grade 9 Microbiology
Which substance is in the cell walls of Eubacteria?
  1. peptidoglycan
  2. chlorophyll
  3. chitin
  4. cellulose
Grade 9 Microbiology
What are prions and viroids?
  1. Prions are believed to be misfolded proteins that are commonly found in brain tissue and that cause incurable disease in animals. Viroids are small circular RNA molecules that infect plants.
  2. Viroids are believed to be misfolded proteins that are commonly found in brain tissue and that cause incurable disease in animals. Prions are small circular RNA molecules that infect plants.
  3. Prions refer to larger viruses, whereas viroids represent smaller viruses.
  4. Prions and viroids are both proteins that help to fight viral infections found in various plant species.
Grade 9 Microbiology
A new kingdom was discovered when                 were viewed under a microscope.
  1. plants
  2. fungi
  3. microorganisms
  4. cells
Grade 9 Microbiology
Viruses are capable of growth and multiplication only in living cells and cause various important diseases in humans, lower animals, and plants.
  1. True
  2. False
Grade 9 Microbiology
Organisms in the kingdom Eubacteria are unicellular.
  1. True
  2. False
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