1. Plant-like Protists
Chapter 8 (Part 2)

2. Plantlike Protists – Algae
Some protists are considered plant like because they undergo…
photosynthesis
Algae – protists that
perform photosynthesis

3. Different from plants, why?
They do not contain specialized tissues and organs
Divided into two groups
multicellular
unicellular

4. Unicellular Algae
Dinoflagellates – algae with 2 flagella that move to spin cell in a corkscrew through water.
Most grow in saltwater and are free living.
Some have symbiotic relationships with jellyfish, sea anemones, coral, etc., supplying nutrients in return for transportation.

5. Diatoms – snowflake like, unicellular algae
Have glasslike cell walls of silica
Have many different shapes
Among the most abundant organisms
in the ocean

6. Stop! Do Diatom QuickLab

7. Euglenoids – organism between protozoa & algae
Lack cell walls and move using a flagella
Have chloroplasts for photosynthesis

8. Multicellular algae
Have specialized structures that resemble plant parts,
but lack true tissues and reproduce like protists.

9. Classified by color
Green algae – chlorophyta – Most live in fresh water or in moist soil.

10. Red Algae – rhodophyta – grow in warm, salt water
-Contain chlorophyll, but also have accessory pigments
-Red algae can appear green, orange, or almost black.

11. Brown Algae – phaeophyta – multicellular and grow
Brown Algae – phaeophyta – multicellular and grow mostly in cool saltwater
- Include giant kelps (can grow up to 100m long and found in deep water)
- Have specialized air bladders to help kelp float near surface to receive sunlight

12.  Homework!! 
Using a blank piece of computer paper write the Title, “Plant-like Protists - Algae"
Divide your paper into 6 sections
3 for Unicellular
3 for Multicellular
List their names
Describe each one and how it lives
Draw and color a picture of each one, and label all the important parts