Unicellular organisms

What does unicellular mean?

Means something that is made of only one cell

Can unicellular organisms do all life functions?

Yes, they do everything in one cell

How can we see unicellular organisms

We can see them only through a microscope

Are unicellular organisms good or bad?

They can be both helpful (like yeast) and harmful (cause disease)

Do bacteria have a nucleus?

No, they have a prokaryotic

Where can bacteria live?

In extreme places (ice, desserts, deep oceans, etc)

Give an example of a bacteria

Streptococcus or Staphylococcus

What do plant-like protists do?

Use photosynthesis to make their own food

Where to plant-like protists live?

In water (fresh or salt)

How does Euglena move?

With a flagellum (tail-like whip)

What special feature helps Euglena find light

An eye spot

What are diatoms known for?

Having two shells and many colors

How to animal-like protists get food?

By hunting or eating other organisms

How does an Amoeba move?

It changes shape using pseudopods (false feet)

How does an Amoeba eat?

It engulfs food using endocytosis

How does a Paramecium move?

With cilia (tiny hairs)

How does a Paramecium eat?

It uses an oral groove (mouth-like part)

how do fungi get food?

By decomposing dead material

Is yeast unicellular or multicellular?

Unicellular

What gas does yeast make when it eats?

Carbon dioxide (CO2)

What is yeast used for?

Baking and brewing (making bread and alcohol)

Are mushrooms unicellular or multicellular?

Multicellular

Can mushroom be poisonous?

Yes, some are poisonous, others are safe to eat