Viruses are not really alive as they do not have cells, can’t turn food into energy and without a host they are just an inert pack of chemicals.  But neither are they dead – as they have genes, can reproduce and evolve through natural selection.  They are basically parasites which require a host to survive.  The following quiz includes some interesting facts about viruses:
  1. What was the first human virus to be discovered?
  1. Influenza
  2. Polio
  3. Yellow Fever
 
  1. Viruses make up the single largest component in our oceans, how many particles per millilitre of seawater?
  1. 100,000,000 particles
  2. 1,000,000 particles
  3. 100,000 particles
 
  1. Virus genomes can exist in how many different sequences.  How many HIV-1 genome sequences are there (for example there are 1011 stars in the milky way galaxy) :
  1. 10 120
  2. 10 4020
  3. 10 6020
 
  1. In what year were we able to first see the structure of a virus?
  1. 1921
  2. 1931
  3. 1941
 
  1. When we have a cold and cough, how fast can the cold virus travel?
  1. 320 km/hour and up to 900 metres
  2. 220 km/hour and up to 700 metres
  3. 110 km/hour and up to 500 metres
 
Answers:
  1. C - Yellow Fever (discovered by Walter Reed in 1901)
  2. B - 1,000,000 particles per ml of seawater
  3. C - 10 6020
  4. D - 1931 (due to the invention of the Electron Microscope)
  5. A - 320 km/hour and up to 900 metres