Kingdom protista Flashcards
What are the characteristics of kingdom protista?
- Eukaryotic
- Live in moist or wet environments
- Most diverse of all eukaryotes
What are the characteristic of plant like protista?
- Photosythetic
- Contains chlorophyll
What does euglena need to survive and what does it look like?
(plant like)
- They need water, carbon dioxide and sunlight to survive
- Flagella used for movement( random movements)
- Light sensitive structure (has a red eye spot which detects light and stays in that area
What does Green algae look like?
(plant like)
- Bi flagellated ( two flagellas)
- Unicellular
What does volvox look like?
(plant like)
- Unicellular
- Babies inside larger sphere of adults
What is algae?
- Plant like seaweeds but lack true leaves, stems and roots
- May be filamentous, grow in mats or crusts, sheets, or kelp. Some grow up yo 100m
What colour is pheaophyta algae?
Brown/yellow pigments
What are the characteristics of phaeophyta?
- Brown/yellow
- Fast growing kelp ( 1 to 2 feet a day)
- Important source of algin
- Used as a thickener/stabilizer
- Emulsifier in many products
What colour is rhodophyta algae?
Red pigment
What are the characteristics of rhodophyta?
- Coralline algae ( can go deep)
-CaCo3 in cell walls (defense and structure) - Encrusting ( Important component of coral reef environments)
- Source of carrageenan ( a seasoning) & agar
- Used as an emulsifier and gel thickeners
What colour is chlorophyta algae?
Green pigments from chlorophyll
What are the characteristics of chlorophyta?
- Green pigments from chlorophyll
- Diverse morphologies ( filamentous, sheets, spongy)
- Important component of coral reef environments
What are the characteristics of animal like protista?
- Heterotrophic
- Get their food by eating different things to fuel cellular respiration
- No cell walls
- No flagella
What are some examples of animal protista?
Amoebas and paramecium
What are the characteristics of amoebas?
- Single celled
- To eat it extends its membrane and engulfs the pray and digests it
alive (AKA endocytosis) - Uses pseudopods to move and eat
- No defined body shape
- Found in fresh water ( they are saltier than the water)
What are the characteristics of paramecium?
- Single celled
- Uses cilia for movement
- Food gets caught on cilia and pushes food into oral groove
- Leaves waste in anal pore which gets pushed out into water again ( AKA exocytosis)
- Contractile vacuoles to remove fresh water to prevet explosion
What are the characteristics of fungus like protista?
- Breaks down what its sitting on and eat it ( decomposers)
- Feed by endocytosis
- Has cell walls made of cellulose
- Live in cool damp habitats
Whats an example of fungi protista?
Water mold
What are the characteristics of water mold?
- Whitish, cottony mold od dead fish
- Covers the fishes gills which prevents it from breathing
- Long strings that filament into eachother
- Produces fruiting bodies similar to fungi
- The cause of the irish potato famine
How do amoebas move?
(Animal like protist)
Creep slowly by streaming their cytoplasm in extentions known as pseudopodia
How does paramecium move?
(Animal like protist)
Cilia ( many short hairlike structures) propel a cell through water like a rowboat
How does euglena move?
(Plant like protist)
Flagella ( long hair like projections) waves like a tail to propel the protist forward
What does the single celled protist life cycle look like?
They reproduce asexually (binary fission) and sexually (conjugation)
What does the multicellular protists life cycle look like?
- May involve the formation of sex cells ( haploid sperm and egg)
- When sex cells fuse, diploid zygota is formed
- Some alternate between a diploid and haploid stage
