Microorganisms

Which of the following helps bread rise?

• algae

• bacteria

• yeast

• fungi

Bacteria is

• always helpful

• always harmful

• sometimes harmful, sometimes beneficial

• never beneficial

which instrument do you use to study microorganisms

• thermometer

• microscope

• telescope

microorganisms can be

• single celled

• multi-celled

• none of the above

• all of the above

How do bacteria help our body function?

• they make our muscles stronger

• they help us digest food

• they circulate in our blood and help carry oxygen

• none of the above

for a microorganisms to be considered beneficial (HELPFUL) it could _______.

• cause illness in humans

• damage the skin

• cause food to spoil

• be used in medicine

Harmful microorganisms can be controlled by __________.

• not washing hands

• sharing food with your friends

• washing hands with soap and water

• leaving food out of the refrigerator for long periods of time.

microorganisms can be use to make

• cheese and yogurt

• plastics

• rocks

• fruit snacks and cookies

which of these is NOT caused by a microorganism?

• tooth decay

• broken bone

• the flu

• a cold

how do we prevent harmful microorganisms from getting into our drinking water?

• poisons are added to the water

• water is either filtered, boiled, or chemicals are added

• nothing is done to the water