Beneficial and harmful microorganisms

Are microorganisms helpful or harmful?

• Helpful

• Harmful

• Both

Some microorganisms in your body can help protect you from bad microorganisms.

• True

• False

Yeast makes bread, rolls and cakes rise.

• True
• False

An example of beneficial bacteria is

• antibiotics

• viruses

• pathogens

• E.coli

_______________ are used in making cheese and yoghurt.

• Virus

• Bacteria

• Protozoa

• Algae

Yogurt contains harmful bacteria.

• True
• False

Which of the following is an example of a harmful microorganism?

• Fungi used as antibiotics
• Ecoli on food that makes people sick
• Bacteria found in yogurt.
• Microorganisms helping dead matter to decay

A piece of bread has a tiny spot of mold growing on it. Is it safe to eat?

• Yes
• No

What conclusion can you make based on the diagram above?

• Microorganisms move

• Microorganisms reproduce

• Microorganisms breathe

• Microorganisms grow

Which is a true statement?

• All microorganisms are harmful.
• All microorganisms are beneficial.
• Some microorganisms are harmful while others are beneficial.
• Microorganisms are beneficial only to humans.