1. The Algae By Mr. B.

2. What are Algae? Eukaryotic plants (autotrophs) Can be –Unicellular –Multicellular as filaments, or multicellular leaflike Found at varying depths in water There are salt and fresh water varieties

4. Unicellular (Protist-like Algae) Chlamydomonas

5. Alternation of Generation – Asexual vs. Sexual

6. Green algae Cellulose cell walls Unicellular (chlamydomonas) or multicellular (like Ulva) Chlorophyll a/b Store starch Gave rise to land plants Chlorophyta

7. Volvox – Colony of Algae Cells

8. Volvox – Look Closely at the Cells communicating Cells “talk” and can even produce gametes

9. Spirogyra – another Chlorophyte Colony Conjugation – swapping gametes

10. Brown algae (kelp) Cellulose cell walls Multicellular Chlorophyll a/c, xanthophylls Stores carbohydrates Phaeophyta

11. Typical Brown Algae

12. Heard of the Sargasso Sea

13. Kelp forests form entire ecosystems

14. Red algae Cellulose cell walls Most multicellular Chlorophyll a & d Stores starch Harvested for agar and carrageenan (emulsifier in ice cream) Rhodophyta

15. Nori - Red Algae used in Sushi