Upload
donald-ganson
View
213
Download
0
Embed Size (px)
Citation preview
Kingdom ProtistaUnit 3
Intro Video
What is a Protist? Protists are eukaryotes that are not member of
the Plant, Animal or Fungi kingdoms.
Most (but not all) are unicellular
Classification of Protists
One way protists can be classified is by how they obtain nutrition:o Heterotrophs- called animal-like protistso Photosynthesizers- called plant-like protistso Decomposers and parasites- called fungus-like protists.
Animal-like: Amoeba Plant-like: Euglena
Fungus-like: Slime Molds
Animal-Like Protists There are four phyla of animal-like protists
o Zooglagellateso Sarcodineso Ciliateso Sporozoans
Animal-like protists are classified by their means of movement.
Zooflagellates Animal-like protists that swim using flagella are
called zooflagellates.
Flagella are long, whiplike projections that allow a cell to move.
Sarcodines Sarcodines are animal-like protists that have
pseudopods.
Pseudopods (false foot) are temporary cytoplasmic projections used for feeding or movement.
Amoeba Flexible, active cells with thick pseudopods that
extend out of the central mass of the cell.
Ciliates Cilates use cilia for feeding and movement. Cilia are short hair like projections that propel a
cell. The paramecium is an example of a ciliate.
o The cilia are grouped into rows and bundles and beat in a regular pattern.
Paramecium
Sporozoans Sporozoans do not move on their own- they are
parasitic Some animal-like protists cause serious diseases,
such as malia
Amoeba and Paramecium Colouring
Bill Nye Greatest Discoveries: Biology
Warm-Up! Label the following parts on the below
paramecium.o Ciliao Oral Grooveo Micronucleuso Macronucleuso Trichocysts
Amoeba-Overview Domain: Eukarya, Kingdom: Protista, Phylum:
Sarcodina
contain pseudopods= false feet
Pseudopods used for both movement and feedingo Feeding: Phagocytosis- pseudopods extend out and
wrap around food particles, making a food vacuole. The food will eventually be digested by the lysosomes.
The contractile vacuole is used to pump out excess water out of the cell.
Paramecium- Overview Domain:Eukarya, Kingdom: Protista, Phylum:
Cilaphora Move by tiny hair-like projections called cilia. The pellicle is a thick outer membrane, reason
Paramecium cannot change their shape. Two types of nuclei: Macronucleus and
Micronucleus Feeding: Heterotrophs, food enters through the
oral groove, and become a food vacuole. Undigested food particles are eliminated through the anal pore.
Trichocysts are threadlike structures used as a defense mechanism
Plant-Like Protists Plant-like protists contain chlorophyll and carry
out photosynthesis. Plant-like protists are commonly called “algae” Algae are sometimes classified with the plants.
Euglena
Euglena-Overview Domain: Eukarya, Kingdom: Protists, Phylum:
Euglenophyta Move through the use of a flagella Feeding: can be both an autotroph and a
heterotropho Autotroph: sunlight and the use of chloroplasts ,
Eyespot can detect light.o Heterotroph: absorbing nutrients across the cell
membrane Firm cell membrane called a pellicle Contractile Vacuole that removes excess water
from the cell
Euglena Colouring
Protist Assignment Pg 498: #1,3,4,5 Pg 505: #1,2 Pg 523: #1,2,4, 11, 13
Assignment is due on Thursday Oct 30th.