Bio 102: Intro to Microbio Quiz

Penicillin...

• Targets harmful viruses

• Is effective in combating Staphylococcus aureus

• Weakens bacterial cell walls with peptidoglycan

• Only attacks harmful, gram-negative bacteria

True or False: Archaea and Bacteria have nuclei.

• True

• False

What is an example of mutualism?

• Humans and gut bacteria

• Cattle egrets picking insects cattle stir up

• Ticks and dogs

• Tree frogs using plants as protection

Which kind of symbiosis is nitrogen fixation involving bacteria and plants?

• Commensalism

• Mutualism

• Parasitism

Which domain contains extremophiles?

• Bacteria

• Eukarya

• Archaea

How do you guys feel about the upcoming exam?

• Prepared!

• Pretty okay.

• Not great.

• Awful...