Microorganisms Question Preview (ID: 13806)
8.L.1.1.
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What parasite is most often responsible for the spread of Lyme disease?
a) amoeba
b) mosquito
c) deer tick
d) crane fly
Which cause athlete’s foot, ringworm, and thrush?
a) protozoa
b) fungi
c) viruses
d) bacteria
Which characteristic makes bacteria suitable for scientific research of disease?
a) They are multicellular.
b) They grow in four stages allowing growth control.
c) They keep virus populations under control.
d) They reproduce rapidly.
Which best describes how viruses affect many organisms?
a) They cause disease in the organisms.
b) They increase reproduction in the organisms.
c) They reduce heat energy in the organisms.
d) They provide energy to the organisms.
Which best explains why antibiotics are ineffective in treating viral infections?
a) Viruses destroy the antibiotic.
b) Viruses escape antibiotics by hiding in cells.
c) Antibiotics increase the rate of viral growth.
d) Antibiotics only kill living cells.
Which best explains why more than 300 million people in Asia are infected with malaria each year?
a) There is no way to protect people against the disease.
b) Mosquitos are becoming resistant to insecticides and continue to carry the disease.
c) The house fly contaminates food with infectious bacteria that cause malaria.
d) The parasites that cause malaria lack the ability to resist antibiotics.
Which disease is caused by living organisms?
a) cold
b) influenza
c) smallpox
d) malaria
How do viruses cause disease?
a) by secreting toxins
b) by competing with healthy cells for nutrients
c) by damaging or killing cells
d) by producing excess waste
Which is the most likely reason for a decline in antibiotic use?
a) Antibiotics have severe health side effects.
b) Bacterial infections have become resistant to present antibiotic treatment.
c) Most health insurance does not cover treatment with antibiotics.
d) Companies find antibiotics too expensive to produce.
Given favorable conditions, which disease-causing agent could quickly multiply into colonies of billions of cells in the space of a drop of water?
a) bacteria
b) viruses
c) protists
d) fungi
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