unicellular live in water 3 types: protozoa algae slime moulds. protists protozoa algae slime mould...
TRANSCRIPT
•unicellular•live in water
•3 types:
• Protozoa• Algae• Slime moulds.
•Protists
Protozoa
Algae
Slime mould
ProtistaProtista
1. Protozoans – 1. Protozoans – Animal-like ProtistsAnimal-like Protists• 2 kinds:
i) Amoebai) Amoebafeed on small organisms like
bacteria, engulf them.
• are able to move
ii) Parameciumii) Parameciumfound in pond watermove around by using cilia (hair-
like covering).
2. Algae (Plant-Like Protists)2. Algae (Plant-Like Protists)• chlorophyll-containing • range in size from single cells to
giant seaweeds 60 metres in length.
• could be classified as plants, except lack leaves, stems, roots.
• Algae
i) Brown Algaei) Brown Algae
multicellularmany species can be quite largeex Kelp
ii) Diatomsii) Diatoms
smallunicellularover 10, 000 species.
iii) Red Algaeiii) Red Algaemulticellularfound in warmer seawateris toxic, kills many fish
3. 3. Slime Moulds and Water Slime Moulds and Water MouldsMoulds
• are similar to fungi (produce spores), plants (have cellulose cell walls) and animals (glide around to ingest food) in some ways.
• they generally live off of decaying matter.
Slime MouldsSlime Moulds
Protist ParasitesProtist Parasites
parasite:something that lives inside and harms its hosthost: what the parasite infectsvector:an organism that carries a parasite and infects other things with it
MalariaMalariaplasmodiummosquitos are vectorlives in bloodstream and can kill
host if not treated1.5 – 2 million deaths/yr (more
than AIDS)prevented with bednetstreated with anti-malarial drugs
monsters-inside-me-malaria-parasite.html
TrypanosomaTrypanosomacause African Sleeping Sicknessvector is Tse Tse flycan infect the nervous system, killing
the hostmonsters-inside-me-african-sleeping-
sickness.html
GiardiaGiardiaparasite in
untreated drinking water
lives in digestive system
causes severe vomiting and diarrhea
CryptosporidiumCryptosporidiumparasite in
infected watercauses diarrheaforms a hard
spore that’s difficult to kill
monsters-inside-me-the-cryptosporidium-parasite.html