Microbiome
Bacteria
Human body
Health
Microorganisms
100

What is a microbiome?

The microorganisms living in and on the body.

100

What type of microorganism makes up most of the human microbiome?

Bacteria.

100

About how many microorganisms are in the human body?

Around 10 trillion.
100

What is an infection?

An invasion of harmful bacteria that can make you sick.

100

What does "micro" mean?

Very small.

200

What does a healthy microbiome have?

Helpful types of bacteria.

200

Are all bacteria harmful?

No.

200
What does the human body provide for microorganisms?

Food and space.

200

Can antibiotics reduce helpful bacteria?

Yes.

200

Can most microorganisms be seen without a microscope?

No.

300

What can harmful bacteria cause?

An infection.

300

What kind of bacteria can make someone sick?

Harmful bacteria.

300

Almost all cells are what?

Microscopic.

300

What can happen when harmful bacteria increase?

A person can become sick.

300

What do microorganisms need from the human body?

Food and space.

400

Why are helpful bacteria important?

They help keep harmful bacteria from taking over.

400

What can antibiotics reduce?

Helpful and harmful bacteria.

400

What is much bigger than a molecule?

A cell.

400

What can fewer helpful gut bacteria lead to?

An easier time for harmful bacteria to cause infection.

400

Are bacteria microorganisms?

Yes.

500

What can happen when there are fewer helpful bacteria in the gut?

Harmful bacteria can infect the body more easily.

500

Why can harmful bacteria grow more easily when helpful bacteria decrease?

There is more food and space available.

500

Where can microorganisms live?

In and on the body.

500

What type of transplant can help patients infected with harmful bacteria?

A fecal transplant.

500

Why are microorganisms important to the human body?

Many are helpful and are part of a healthy microbiome.