kingdom protista protists- the hodge- podge group
TRANSCRIPT
KINGDOM PROTISTA
Protists- the hodge- podge group
Basics
Eukaryotic 3 groups- animal like -Protozoans plant like- Algae fungi like- Slime moldsEvolved from a symbiotic relationship: 1
prokaryote engulfed another (like a mitochondrial or chloroplast like cell) ENDOSYMBIOSIS
Protozoans- animal likeHOW THEY
MOVEPSEUDOPO
DFLAGELLA CILIA SPORES
(SPOROZOAN)
Example SarcodinesAmoeba
Zooflagellates
Giardia
CiliatesParamecium
Plasmodium
Environment Salt and fresh water
1.Streams2. Gut of termite3. Parasite in human DT
Ponds and streams
Gut of mosquito/blood of humans
SpecialStructures
Contractile vacuole- pumps out excess water
Help digest cellulose
Ingest food through oral groove and gulletMacro and micronucleus
Produce spores-need intermediate host like mosquito
Diseases Amoebic dysentery
Giardiasis Malaria
Pseudopods stream in different directions to make amoeba move.
Single celled Pseudopods
surround food and engulf it
Giardia
Can cause giardiasis.
Usually from contaminated water.
Called backpackers diarrhea
Paramecium
Use cilia to sweep food into oral groove and then digest in the gullet.
Has 2 nuclei- I macro and 1 micro
Plasmodium
Causes malaria Lives in gut of
mosquito Mosquito bites
human Injects some
spores- they germinate and live in the blood
ALGAE-Plant like
Contain chlorophyll or other pigment Can be unicellular, multicellular or
colonial 7 types
Euglenophyte: Euglena
Unique because they can do photosynthesis and ingest food(heterotrophic).
Has an EYESPOT which helps detect light so it can swim towards it to photosynthesize
Has a flagella for movement
Pellicle- thick outer covering
Chrysophyte:Golden Algae
Many unicellular Some colonial Gold colored
chloroplast
Diatoms
Contain chlorophyll
Photosynthetic Shell made of
SILICA- used for abrasives in cleansers like toothpaste
Also called phytoplankton
Dinoflagellates
Cell wall contains cellulose
Contain chlorophyll Also have another
pigment called carotenoid(orange color)
Cause Red Tide- due to overgrowth in the ocean. Produces a toxin that is harmful to sea life and humans
Red Algae
Phylum Rhodophyta Multicellular Marine sea weed Has no roots, stems,
or leaves Main structure called
a thallus Has Chlorophyll a
and phycobilins that help harvest light at deep depths.
Brown Algae
Phylum Phaeophyta
Multicellular Contain
chlorophyll and a brown pigment- FUROXANTHIN
Kelp Have air bladders
to keep them afloat
Green Algae
Phylum Chlorophyta
Most live in fresh water
Can be unicellular or multicellular
Spyrogyra-multicellular Volvox is a
colonial green algae
Uses for Algae
Base of the food chain Produce O Sushi:nori Smoothener in foods like ice cream and
pudding Industrial uses: plastics, waxes,
deodorant, paint, agar( material used to grow bacteria)
Fungi like – Slime Molds and Water Molds
Live in moist, cool environment
Watery molds- Oomycota