Microbial Colonies and Biofilms Quiz

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Questions and Answers

What is a colony of microorganisms?

A group of cells living separately
A single cell living in isolation
A population of microorganisms living underground
A population of microorganisms living in association with each other (correct)

How do most microbes live?

As individual cells scattered across large areas
As biofilms in association with each other on surfaces (correct)
As single cells floating in the air
As a colony of cells inside the human body

What happens to the size of a colony as the number of cells increases?

It breaks apart into smaller colonies
It decreases in size
It remains constant in size
It grows in size (correct)

Match the following terms with their definitions:

Colony = A visible population of microorganisms arising from a single cell Biofilm = Microbes living in association with one another on surfaces Microorganism = A single cell or colony-forming unit Population = The number of cells in a colony Signup and view all the answers

Match the following descriptions with the appropriate term:

Visible population of microorganisms arising from a single cell or colony-forming unit = Colony Microbes living in association with one another on surfaces = Biofilm A single cell or colony-forming unit = Microorganism The number of cells in a colony = Population Signup and view all the answers

Match the following statements with the correct characteristic of a colony:

Arises from a single cell or colony-forming unit = Colony Grows in size as the number of cells increases = Colony Most microbes live as biofilms, in association with one another on surfaces = Biofilm Visible population of microorganisms = Colony Signup and view all the answers