6 groups of Algae ***FOR YOUR BOOKLET: You will need to find more information and examples, and a picture representation of each to further study/understand the types… This is just an introductory to each type.

Euglenophytes – 1.Euglenophytes – Example – Euglena unicellular (microscopic); typically live in fresh water around the world plantlike protists that have two flagella like Pyrrophytes and no cell wall. found in fresh water ponds, ditches, streams, lakes, where there is a lot of organic materials (cow pastures, hog lots, chicken farms) has chlorophyll, can photosynthesize if sunlight present. Uses its photosensitive red eyespot to locate sun. Also, eats other organisms. * Therefore, it is both autotrophic and heterotrophic.

Chlorophytes 2. Chlorophytes - Green algae Resemble plants the most – Examples – Sea lettuce (salt water) Chlamydomonas ydomonas++&submit=Submit ydomonas++&submit=Submit found in stagnant water and on damp soil, in freshwater, seawater, and even in snow known as "snow algae" both single & multicellular

Chrysophytes 3. Chrysophytes - Golden algae * Examples – Diatoms * one of the most abundant unicellular algae in the ocean *considered helpful to humans * unicellular (microscopic) * found in mostly salt water * one of the biggest components of plankton, which is a a free floating collection of microorganisms, eggs, and larvae * cell wall composed of silica (glass) * hollow, hard/porous shell called a frustule * store food in form of oil instead of starch float at surface because of this * Able to photosynthesize at surface Diatomaceous earth (D.E. diatomites) – naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder left over frustulas,used in toothpaste and cleansers

Phaeophytes 4. Phaeophytes - Brown Algae * Example – Kelp(can be food for humans), seaweed multi-cellular; have a very strong base that anchors them to the rocky sea floor to prevent them from being washed out to sea play an important role in marine environments, both as food and for the habitats they form * all species live in salt water, normally in colder water * largest algae – ft. long (otters play in them) * used as a smoothing agent in various soft foods ice cream, pudding, baby food, etc. * also used in make-up, paint, shaving creams, etc. * look for terms – algin, guar gum, alginate, carrageen

Rhodophytes 5. Rhodophytes - Red algae, “Rhodo”means “rose” oldest groups of eukaryotic algae,[2] and also one of the largest found typically in warmer waters; but can grow in deeper waters – Deepest growing algae 175 meters down, mostly multicellular, marine algae, Agar- used in medical field Ex. Is Iodine (found in body as a hormone called thyroxin, can affect your thyroid glands), need to prevent goiters, used in human consumption; Several species are important in food crops & are high in vitamins and protein and are easily grown; & can be eaten raw, roasted, boiled, fried or dried as a relish.

Pyrrophytes/Dinoflagellates 6 Pyrrophytes – Fire algae ( glow) – Ex. Dinoflagellates – spin like tops in water unicellular, photosynthetic, and mostly aquatic; can have 2 flagellas like Euglenophytes, which makes them very identifiable. protective coats composed of stiff cellulose Red Tide producers …..waste products can kill – species of dinoflagellates reproduce rapidly to form a harmful algal bloom (HAB). Such pyrrophytes can produce toxins which may injure or kill wildlife, and additionally any consumers of contaminated wildlife.