Microorganisms — Practice Questions

Question 1

Microorganisms are living things that are:

Accepted Answer

too small to see without a microscope — They are so tiny we need a microscope to see them.

Question 2

Which of these is a microorganism?

Accepted Answer

Bacteria — Bacteria are microorganisms.

Question 3

Which microorganism helps bread to rise?

Accepted Answer

Yeast — Yeast (a fungus) makes bread rise.

Question 4

Some microorganisms are harmful because they can:

Accepted Answer

cause disease — Harmful microorganisms can cause disease.

Question 5

Food goes bad because ___ grow on it.

Accepted Answer

microorganisms — Microorganisms grow on food and spoil it.

Question 6

To see a microorganism clearly, you would use a:

Accepted Answer

microscope — A microscope magnifies tiny things so we can see them.