Hello and welcome to the zero to finals podcast. My name is Tom and in this episode,

we're going to be going through infectious diseases short answer questions.

And you can find a written version of these questions at members.0 tofinals.com

where you can also find an anarchy-like feature that allows you to go through

the questions and rate them as to how hard you find them. And this will determine whether it repeats

the question back to you after a week, three days or immediately. So you can get in spaced repetitions depending on which questions

you're good at and which questions you're less good at. But for now, let's get straight into

these infectious diseases short answer questions. Question one, what term describes bacteria

that live and multiply harmlessly without causing disease?

Colonizing bacteria.

Question two.

What term refers to the trillions of bacteria colonizing the human body, mainly in the gut?

The microbiome.

Question 3.

What is a difference between aerobic and anaerobic bacteria?

Aerobic bacteria require oxygen, whereas anaerobic bacteria do not.

Question four. What are the key characteristics that distinguish gram-positive bacteria

from gram-negative bacteria?

Gram-positive bacteria have a thick peptidoglycan cell wall that stains with crystal violet stain.

Question 5. What term describes bacteria that cannot be stained or cultured in the normal way?

Atypical bacteria.

Question 6.

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