Station 1

• Volvox

– View the picture of Volvox on the next slide

– Draw a picture of what you see.

– Why do you think Volvox is green? How do

you think Volvox gets its energy?

– Use the reading on Slide 3 to answer the rest

of the questions on your sheet.

Volvox

Volvox Reading• Volvox are one-celled algae that live together in a

colony. The colony is a hollow ball with 500 to 20,000

individual cells. Look for rolling green balls on the slide.

When you see a volvox colony, look for the structures

shown in the diagram.

• Movement: Each volvox cell has two flagella. The

flagella beat together to roll the ball through the water.

• Feeding: Volvox cells have chlorophyll and make their

own food by photosynthesis.

• Reproduction: Daughter colonies are small, dark green

balls inside the volvox colony. When the daughter

colonies mature, the parent ball bursts open and

releases the daughter colonies.

• Size 350 to 500 µm (Two or three volvox cells would fit in

1 mm.)

Station 2

• Stentor

– Draw a picture of what you see on the next

slide.

– Label the mouth of the Stentor on your

picture.

– Cilia are short hair-like projections. What do

you think the Stentor uses its cilia for? (Hint:

Pay attention to where the cilia are located)

Stentor Under the Microscope

Stentor Diagram

Station 3

• Amoeba

– What is a pseudopod? (pg. 606)

– What are the two purposes of a pseudopod?

(See Fig. 21-4 on pg. 606)

– Draw the amoeba you see on the next page

and label at least one pseudopod.

Station 4

• Spirostomum

– Draw what you see on the next slide

– Read the paragraph to answer the question

in your packet.

Spirostomum

Spirostomum Reading

• Some of the largest ciliates belong to the

genus Spirostomum, some species large enough to see

with the naked eye. These organisms hold the record for

the fastest body contractions of any living cell,

contracting its length to 25% of its normal size in 6-8

milliseconds. Spirostomum feeds on bacteria and

during cold weather forms large clusters of organisms

that hibernate together.

• Taken from: https://www.microscopyu.com/gallery-

images/spirostomum-protozoan-videos

Station 5 pg 615-616

What is mutualistic symbiosis?

Give an example of a mutualistic relationship

between a protist and another organism.

What are 3 diseases that are caused by

protists?

1.

2.

3.

Station 6

• Ecological Roles of Protists

– On page 611 the ecological roles of protists

are described. List and describe the 4

ecological roles of protists. At least one

sentence about each role!

Station 7

• Read about Toxic Blooms on pg. DOL 13

– What type of protists cause toxic blooms or

red tide?

– How are red tides harmful to the food web?

– What effects can occur from eating shellfish

from red tide water?

Station 8

• Euglena- Draw the Euglena you see on the next slide and

record 3 specific observations about what you see.

- What are flagella? (pg 607). How do Euglena use

their flagella?

- Answer the rest of the questions in your packet.

Euglena Under the Microscope

Euglena Diagram

Station 9

• Paramecium • Cilia are short hair-like projections (pg. 607). What

do Paramecium use their cilia for?

• Observe and draw the Paramecium on the next

slide.

• Make 3 specific observations.

• How do Paramecium move?

Paramecium Under the Microscope

Paramecium Diagram

Station 10

• Spirogyra (green algae)

- Draw what you see on the next slide

Station 11

• Diatoms

- Draw 3 types of the diatoms that you

see on the next page

Diatoms