Bacteria and Archaea

How are bacteria classified and identified?

• by their shape

• by their oxygen needs

• by their gram stain

• all of the above

What are the most abundant organisms on Earth?

• prokaryotes

• eukaryotes

• monera

• protista

Prokaryotes include all

• protists and monera

• bacteria and archaea

• Animalia and plantae

• bacteria and protists

Which prokaryotes die in the presence of oxygen?

• obligate aerobes

• obligate anaerobes

• facultative anaerobes

• all of the above

Which prokaryotes need oxygen to survive?

• obligate anaerobes

• obligate aerobes

• facultative aerobes

• none of the above

Which prokaryotes are able to survive with or without oxygen?

• obligate anaerobes

• obligate aerobes

• facultative aerobes

• none of the above

Which prokaryotes are extremophiles and live in harsh conditions?

• bacteria

• protists

• archaea

• fungi

What is a rod shaped bacteria called?

• cocci

• bacilli

• spirilla

• spirochete

What is a spiral shaped bacteria called?

• cocci

• bacilli

• spirilla

• spirochete

What structure helps bacteria move around?

• pili

• plasmid

• flagella

• cell wall