PROTISTS

PROTISTS

1. PROTOZOA

   • Characteristics
     • Animal-like
     • unicellular
     • aerobic,anaerobic
     • colourless
     • motile
     • parasitic , phatogenic
   • Reproduction
     • asexual
       • fission
       • budding
       • schizogony
     • sexual
       • conjugation
   • Nutrition
     • How the obtain food and nutrients??
     • Ingestion/swallow
       • via
         • gullet/cytostome
       • bacteria
         • particulate or whole
     • pinocytosis
       • fluid suck
     • phagocytosis
       • surround food particle
     • absorption
       • via plasma membrane
   • Major Group
     • Archeazoa
       • flagellated
       • parasitic
       • Trypanosoma gambiense
         • African sleeping sickness
     • Rhizopoda
       • Amoebas
       • pseudopods
         • movement
       • amoebic dysentry
       • Amoeba proteus
     • Ciliophora
       • cillia
       • nuclei
         • micronucleus
           • inheritance
           • sexual reproduction
         • macronucleus
           • production of mRNA
       • Paramecium
     • Apicomplexa
       • not motile
       • obligate parasites
       • Plasmodium vivax
         • Malaria

2. ALGAE

   • Reproduction
     • asexual
       • fragmentation
       • spores
       • binary fission
     • sexual
       • female
         • oogonia
       • male
         • antheridia
   • Classification
     • based on :
       • Cell wall
         • modified cellulose fibril
         • calcium carbonate
           • coraline algae
         • chitin or silica
       • Habitat
         • aquatic
           • fresh water
           • brackish
           • marine
         • acidic
         • moist soil
       • Flagella
         • single
           • Euglena
         • two/ 4 flagella
           • Chlorophyta
         • two of different length
           • Dinoflagellates
       • Chlorophyll
   • Taxonomy
     • Chlorophyta
       • green
       • cellulose cell wall
       • chlorophyll a and b
       • store glucose polymer
       • teresstial
     • Rhodophyta
       • red
       • chlorophyll a and d , phycocyanin, phycoerythrin
       • red pigment absorb blue light
       • store glucose polymer
       • marine
     • Phaedophyta
       • brown
       • chlorophyll a and c, xanthophylls
       • algin cell wall
       • store carbohydrates
       • coastal water
         • marine
     • Chrysophyta
       • Diatoms- Bacillariophyta
         • golden-brown
         • produce domoic acid
         • store oil
         • chlorophyl a and c
         • fresh water, marine, soil
     • Pyrrophyta
       • Dinoflagellates
         • brownish
         • produce neurotoxins
         • store starch
         • cause red tides
         • freshwater, marine
   • plant-like

3. SLIME MOLD

   • Distribution and function
     • moist terrestial habitat
       • soil
       • dung
       • decaying woods
     • engulf bacteria
     • as decomposer and consumer
     • recycling of nutrient
     • cause disease to plants
   • divisions
     • Myxomycota
       • acellular
       • saprophytes
       • multinucleated
       • motile amoeboid mass
         • plasmodium
       • phagocytosized dead material
     • Acrasiomycota
       • cellular
       • individual amoebic cells
       • feed phagocytically
       • divide by mitosis and cytokinesis
     • Peronosporomycetes
       • oomycetes
         • diploid
         • no chitin cell wall
         • habitat
           • grow on dead algae and animals
           • parasites of fish gills
         • plant disease
           • blue mold
           • Irish potato blight
       • water molds