Life Cycle - Human Biology (6B)
Lab 


PROBLEM: What is the difference between a bacterium and a virus?

PREDICTION:  

MATERIALS: bacteria and virus sheet, glue, construction paper

PROCEDURE:

  1. Go over the characteristics of a bacteria and virus using the diagrams below.
  2. Cut the bacteria and virus sheet and group them into bacteria and viruses.
  3. Glue the pieces on 2 separate sheets of construction paper and label bacteria and viruses.

BACTERIA

  1. 3 basic shapes: bacillus, coccus, and spirillum
  2. have a tough outer covering called the non-cellulosic cell wall
                            

VIRUS

  1. non living, needs a host to reproduce
  2. composed of nucleic acid enclosed in a coat of protein

 

CONCLUSION: How can you tell the difference between a bacterium and a virus?

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