1. Protista unicellular live in water 3 types: Protozoa Algae
Slime moulds.
Protists
Protozoa
Algae
Slime mould

2. 1. Protozoans – Animal-like Protists
2 kinds:

3. i) Amoeba feed on small organisms like bacteria, engulf them.
are able to move

4. ii) Paramecium found in pond water
move around by using cilia (hair- like covering).

5. 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

6. i) Brown Algae
multicellular
many species can be quite large
ex Kelp

7. ii) Diatoms
small
unicellular
over 10, 000 species.

8. iii) Red Algae
multicellular
found in warmer seawater
is toxic, kills many fish

9. 3. Slime Moulds and Water Moulds
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.

10. Slime Moulds

11. Protist Parasites parasite:
something that lives inside and harms its host
host:
what the parasite infects
vector:
an organism that carries a parasite and infects other things with it

12. Malaria plasmodium mosquitos are vector
lives in bloodstream and can kill host if not treated
1.5 – 2 million deaths/yr (more than AIDS)
prevented with bednets
treated with anti-malarial drugs
monsters-inside-me-malaria-parasite.html

13. Trypanosoma cause African Sleeping Sickness vector is Tse Tse fly
can infect the nervous system, killing the host
monsters-inside-me-african-sleeping- sickness.html

14. Giardia parasite in untreated drinking water lives in digestive system
causes severe vomiting and diarrhea

15. Cryptosporidium parasite in infected water causes diarrhea
forms a hard spore that’s difficult to kill
monsters-inside- me-the- cryptosporidium- parasite.html