The Good and Bad of Microorganisms

Question Packet

1 - What is a Microorganism?

*A microorganism is a living thing that can only be seen with the aid of magnification.

2- All microorganisms are ________ ___________ or

______________

living things or organisms

3- Explain what unicellular or single-

celled means.Single-celled means any living thing that

has only one cell, the smallest unit of life.

4- Some microorganisms are ____, living things that make their own

_____ from simple substances usually using ___, as plants do.

Some microorganisms are PRODUCERS, living things that make their own FOOD from simple

substances usually using SUNLIGHT, as plants do.

5- Most microorganisms do not cause _________ and

many are ___________.

DISEASE

HELPFUL

6- How are Microorganisms

classified?Microorganisms are classified by the

microorganisms' shape, structure, how they get food, where they live and how they move.

7- What are the microorganisms we are studying in this unit?

Bacteria, Fungi, and Protists

8- Give the definition of bacteria.

Bacteria are microscopic, single-celled organisms that exist all around you and inside

you.

9- How do we depend on bacteria?

We depend on bacteria to help in the digestion of food, for plant growth, and to help us make foods and medicines.

10- _____, bacteria and fungi feeding on breaking down

plant matter.

DECOMPOSERS

11- When bacteria break down the ____ _____, they

release substances that can be used by other _____ in the

______.When bacteria break down the DEAD ORGANISMS, they release substances that can be used by other

ORGANISMS in the ECOSYSTEM.

12- Where in our bodies do bacteria

always live?Bacteria are found in digestive systems and help digest food.

13 – What foods have bacteria?

YOGURT AND CHEESE

Bacteria are the smallest ________.MICROORGANISMS

15 – What is required to see bacteria?

To see bacteria as a single organism, requires a

microscope with very high magnification.

16 – Bacteria live in ___ ___ ___ ____ _____.

Bacteria live in almost every place on Earth.

17- Scientists can ____, grow microorganisms in

a specially prepared ______ ________.

Scientists can CULTURE, grow microorganisms in a specially prepared

NUTRIENT MEDIUM.

18- WHAT ARE FUNGI?

Fungi are organisms that are neither plant nor animal, yet have

characteristics of both, and absorb food from whatever source they are growing

on.

19- A COMMON FUNGUS IS A_______.

MUSHROOM

20- Mushrooms cannot make _____ _____ _____ and must live on a _____ _____.

Mushrooms cannot make THEIR OWN FOOD and must live on a FOOD SOURCE.

21- What is another type of fungus?

Another fungus, yeast, is used to make bread rise and give it flavor.

22-Fungi like ____ ____ places to grow.

WARM MOIST

23- Protozoans are____________.

Protozoans are microscopic organisms that usually live in

water.

24- Protozoans move through the water with tiny _____ _____

____ ____.

Protozoans move through the water with tiny HAIR-LIKE ARMS CALLED CILIA.

25- Protozoans eat ___ and _________.

Protozoans eat BACTERIA and MOLD.

26-Why is it not a good idea to drink water from a stream?

Streams sometimes contain a protozoan called Giardia that can make you sick.

Algae are _________.

Algae are a type of protist that usually live in water and can

produce their own food.

28- List the colors that algae can be.

Algae can be red, brown, yellow or green.

29- Algae can grow up to ________.

60 meters

30- Algae is an important part ____ ____

_____ _____.Algae are an important part OF THE

OCEAN’S ECOSYSTEM

31- ALGAE PROVIDE FOOD FOR

______________.fish, whales

and many other sea animals.

32- WHAT PROVIDE HALF OF THE OXYGEN

ON EARTH?

Phytoplankton

Thank you, thank you very much!Love those microbes!