1 / 12

Protists

Protists. From Bacteria to Plants Chapter 3.1 Pages 80-89. The Junk Drawer Kingdom. All protists are Eukaryotes : organisms that have cells with a nucleus Protists vary widely… Some unicellular, some multicellular Some heterotrophic, some autotrophic Some mobile, some immobile

skule
Download Presentation

Protists

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Protists From Bacteria to Plants Chapter 3.1 Pages 80-89

  2. The Junk Drawer Kingdom • All protists areEukaryotes: organisms that have cells with a nucleus • Protists vary widely… • Some unicellular, some multicellular • Some heterotrophic, some autotrophic • Some mobile, some immobile • Divided into 3 categories.

  3. Animal-like • Known as Protozoans • Protozoan are heterotrophs (cannot make own food) • Able to move freely • Are unicellular • Are 4 different types.

  4. Protozoans: Types I & II Sarcodines Ciliates Have organelles called Cilia, hair-like structures that move like a wave Used to move, obtain food, and sense like whiskers. • Have bulges of the cell membrane that fill with cytoplasm called Pseudopods(false foot) • Use this ‘foot’ for movement • Also use it to trap food.

  5. Protozoans: Types III & IV Zooflagellates Sporozoans Are parasites Move in a variety of ways On their own(flagella / slime) Or depend on host Can feed off multiple hosts, like Plasmodium Humans and Mosquitoes spread malaria (fever & chills). • Posses flagella, used for locomotion • Live inside other organisms • When both organisms benefit from a relationship, it is a type of symbiosis called Mutualism

  6. Fungus-like Protists Heterotrophs Have cell walls Reproduce using Spores: tiny cell that grows into a new organism Able to move at some point.

  7. Water Molds Look fuzzy or threadlike Downy Mildews

  8. Fungus Among Us • Slime Molds live in moist soil or decaying plants & trees • Often brightly colored • Move using pseudopods • Feed on other bacteria

  9. Plantlike Protists • Called Algae • All are autotrophs • Can live in groups of several thousand called Colonies • Differentiated by color of chemicals or Pigment.

  10. Brown Algae Red Algae Green Algae

  11. What to Work On • Read textbook pages 80-89 • Answer the Section 3.1 Review questions on page 89 (#’s 1-3) DUE: Friday, October 21st

More Related