Bacteria

Bacteria are 

• single celled, living organisms 
• Multicellular non-living organisms
• Unicellular eukaryotes
• Multicellular eukaryotes

Tags

NGSS.MS-LS1-1

Which is true about bacteria cells ?

• they lack lipids
• they lack a nucleus
• they lack proteins 
• they lack DNA

Which is not true about bacteria

• They produce 50% of the oxygen in the atmosphere
• They can be used to purify water
• They all cause disease in humans
• They can help create food like yogurt 

Name this bacteria shape

• coccus
• spirillum
• bacillus
• pear

Bacteria can live...

• In glaciers
• At the bottom of the ocean
• In volcanoes
• All of these places

Most bacteria are harmful to humans, true or false?

• true
• false

Penicillin is called a/an ________________?

• antibody
• antibiotic
• vaccine
• enzyme

What is the number 1 way to prevent contamination of food by bacteria

• Wash your hands in hot soapy water for 1 minute
• Spray your cutting board with bleach
• Spary raw foods with disinfectant
• Wipe your hands on a damp towel 

The outer covering of a bacteria cell is called the

• flagella
• cytoplasm
• cell wall 
• shell wall

Name this bacteria shape

• bacillus
• coccus
• spirillum
• diamond