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2/10. Pick up Protist /Fungi Notes from the back Take out your warm up sheets and classification chart. Reminder: Quiz: Protist and Fungi Wednesday 2/12 Test Monday, February 17 th . *If you haven’t started studying, don’t wait to cram on Sunday!!.
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2/10 • Pick up Protist/Fungi Notes from the back • Take out your warm up sheets and classification chart. • Reminder: • Quiz: Protist and Fungi Wednesday 2/12 • Test Monday, February 17th. *If you haven’t started studying, don’t wait to cram on Sunday!!
Warm up: Which of the following plates has the best Zone of Inhibition? How can you tell?
I. Kingdom Protista – very diverse; any eukaryote that is NOT plant, animal, fungi or bacteria A. General Characteristics 1. Most are – unicellular , few are - multicellular 2. All are – eukaryotes 3. Protists are classified by how they obtain nutrition: a. animal-like: heterotrophs b. plant-like: autotrophs c. fungus-like:decomposers
B. Animal-like protists – some are free-living, some are parasitic (cause Malaria, African sleeping sickness) examples: 1. Paramecium cell membrane (inner) cytoplasm cilia contractilevacuole nucleus
Heterotrophic pumps out water, maintaining water balance in a cell – contractile vacuole (imp. for homeostasis) c. method of movement – cilia Video
2. Amoeba cell membrane pseudopod contractile vacuole vacuole nucleus cytoplasm
a. false foot – pseudopod b. method of movement–cytoplasmic streaming Video
C. Plantlike protists – examples: 1. Euglena cell membrane (inner) cytoplasm flagellum chloroplast eyespot contractile vacuole nucleus
a. presence of chloroplast – producer, autotroph b. method of movement – flagellum, whip like tail c. eyespot – light sensitive – moves organism toward light for photosynthesis Video
2. unicellular Algae -- provides a source of nourishment for other organisms 3. red, brown and green algae – multicellular
D. Importance 1. Beneficial a. outer covering of some protists form – hard silica shell = diatoms used in toothpaste and scouring powder b. plankton- food source for other organisms such as snail, clams and fish c. algae – used to make thickener for foods
2. Harmful a. some protists produce a red pigment, too many protists cause – red tide (affects fish, filter feeders)
b. Mosquito-born infectious disease caused by protists – Malaria c. algal bloom - enormous mass of algae – covers ponds, uses up O2 and kills fish
2/11 • Pick up worksheet from the back. • Take out your warm up sheet and your Protists& Fungi Notes • Remember: Protist and Fungi Quiz tomorrow!
Warm up Which diagram represents a system of biological taxonomy showing evolutionary relationships among groups of organisms? Give one example of a plant like protists, and an animal like protists.
A. General Characteristics Few are unicellular but most are – multicellular They all have cell walls –made of chitin (no cellulose like plants) They are plantlike – can’t move about BUT they cannot make their own food – no chloroplasts, not green All are – heterotrophs They are either: a. Parasites – obtain food from living organisms b. Saprophytes – obtain food from dead organisms 6. Obtain nutrition by – releasing digestive enzymes on organic material and absorbing nutrients
B. Examples • Bread Mold Spores—reproduction hypha (pl. hyphae) Mycelium – absorbs nutrients (NOT roots)
2. Mushrooms fruiting body Fruiting body spores cap gills stalk mycelium
3. Yeast - unicellular Ringworm and Athletes Foot (parasites) 5. Symbiotic relationships: Lichens – symbiotic relationship between – fungus and algae Fungus provides moisture, algae provides food – mutualism – both benefit
Mycorrhizae – symbiotic relationship between – fungus and plant roots Fungus helps roots absorb moisture and nutrients, roots provide fungus with products of photosynthesis
Importance: 1. Beneficial a. food—mushrooms, yeast, cheeses b. medicine - penicillin c. decomposers—recycle nutrients back into soil for plants
2. Harmful: a. plant diseases – smuts, rusts, mildew b. human disease – ringworm, athlete’s foot
Protist Fungus WS • Mark out the following questions: • Protists side • # 9, 14, 16 • Fungus side • 10 on top and 10 in matching
2/12 Pick up Kingdom Lab worksheets on my desk. Staple together! Do not touch anything on the desks or countertops. 2nd-6th: finish Content Frame Get out your PROTIST LAB – TURN IN TO ALPHA SORTER
