Chapter 20 Bacteria/Virus

Bacteria are prokaryotes which means they

• have a nucleus on their capsule

• do not contain a nucleus

• can live in environments with and without oxygen

• contain membrane bound organelles

Name this bacteria shape

• coccus
• spirillum
• bacillus

Name this bacteria shape

• bacillus
• coccus
• spirillum

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The outer covering of a bacteria cell is called the

• flagella
• cytoplasm
• cell wall 

 Bacteria that help break down dead material in the environment are called 

• vaccines
• decomposers
• oats

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A disease causing organism

• pathogen
• poison
• vaccine

Strep throat is caused by 

• bacteria
• virus

The flu is caused by

• bacteria
• virus

Live bacteria are found in milk, cheese and yogurt

• True
• False

The name of a bacteria can be described by its shape

• False
• True