Algae (plant - like) Classification

Phylum Euglenophyta?
 Animal like: move by using whip like tail called flagellum
 It has an eye  photoreceptor
 Mouth like structure
 Euglena is an example
 Reproduces Asexually

Phylum Diatoms
Chrysophyta (golden algae)
 Golden brown algae
 It Floats
 Surfaces of fresh water as well as salt
 Covered by two shells of silica that fit together like a pill box (glass)
 Food is stored within their cells as small drops of “oil”

Notes: Kingdom Protista Characteristics

part 1

Did you know that the members of the Kingdom Protista are the simplest of the Eukaryotes.
Protists actually lack characteristics.... shared by plants, fungi, and animals. BUT they are NOT .... Bacteria.

known as a "Left - Over" organism.

Protista Classification

• To be evolved 1.7 billion years ago
• The Eukaryotic contains membrane bound nuclei and membrane bound organelles.
• UNICELLULAR
• they mostly live in aquatic habitats:

o Ponds

o Drops of water in soil

o Digestive tracts of animals

· Some can function as Parasites

· May have qualities of both animals and plants

o Did you know…. That some protists can make their own food through photosynthesis; phytoplankton is autotrophic. Others take their food from an outside source; zooplankton is heterotrophic.

o “Animal- like” protista

Kingdom Protista

-Kingdom at the Crossroad-

Clasification:

• Free living
• Eukaryote
  
• unicellular, colonial forms
• 3 Types:
  

-Animal Like
-Plant Like
-Fungus Like

(They are most easily classified for what characteristic that are NOT possessing)
not animals, not plants, not fungus


Animal-Like Protists:

"Protozoans"

• Unicellular & Colonial
• Eukaryote
• Heterotrophic
• Endosymbiont Hypothesis

-first eukaryote cell was formed by a symbiosis among several prokaryotes which lost the ability to live alone on its own.

1. Ciliates - motile, cilia, free living

• Example: Paramecium (reproducing by binary fission, conjugation).

2. Flagellates - motile, flagella, reproduce asexually by binary fission and sexually

• Example: Trypanosoma - which causes African Sleeping Sickness
• Example: Trichonympha - which lives in termites and help digest food

3. Sporozoans - non-motile, parasitic, produced by spores

• Example: Plasmodium - which causes malaria

4. Sarcodina - "False Feet" pseudopod

• Example: Amoeba - some causes amebic dysentary
  

* Infectious Disease is caused by the given information form the article above *

Amoeba

Paramecium

Radiolarian

Plant-Like Protists:

• Single celled
• Photosynthetic
• Some are flagellated, luminescent
• Many live freely or as colonies
• Phytoplankton - primary producer of oxygen

-Euglenophta- Euglena (autotrophic and heterotropic)
-Pyrrophyta- Dinoflagellates (luminescent, produce toxins that shellfish absorbs - Dangerous - RED TIDE)
-Chrysophyta- Diatoms, important component of marine plankton - food source for marine animals, silicon cell walls important component of detergents, polishes, and paint removers.

(Whoa i totally did not know that.)

Diatoms

Spyrogyra

Fungus - Like Protists:

• Contain parasitic and predatory molds that produce spores
• Most are single celled, decomposer in aquatic habitat
• Phagacytic slime molds live as single amoeba cells or aggregation of cells that migrate together and form spore producing structures
• A cellular slime molds - help scientist study movement of protoplasm, form plasmodia at one point in life cycle.
• Cellular slime molds - help scientist study how cells communicate, function like a single, multicelled organism as one point in their life cycle.

Slime mold

ALGAE
(protist or Plants???)

• Red, Brown and Green Algae
• Many scientist place them in Plant Kingdom