Animal-like protists

Question 1

Animal-like protists

Answer 1

Are heterotrophs & are able to move around in their environment to find food. They are also unicellular - unlike animals.

Question 2

4 groups of animal-like protists

Answer 2

Protists w/ flagella, protists w/ pseudopods, protists w/ cilia, & sporozoans

Question 3

Protists w/ flagella (zooflagellates)

Answer 3

1. They move by beating their long whip-like structures called flagella
2. Some feed on other protists & some live in the bodies of other organisms
3. Some are beneficial to their host & others are parasites
4. They are the primary component in the marine food chain

Question 4

Protists w/ pseudopods

Answer 4

1. They move by cytoplasmic streaming - creating finger-like projections of cytoplasm called pseudopods.
2. The pseudopods are used for movement & obtaining food through endocytosis.
3. Eg. Amoebas

Question 5

2 Amoebas that cause disease

Answer 5

Naegleria (causes amoebic meningitis) & Entamoeba (causes amoebic dysentery). Both diseases are found in the tropics & in countries with poor sanitation.

Question 6

Amoebas are:

Answer 6

Major consumers of bacteria in soil ecosystems, ensuring nutrient regeneration & continued functioning of the ecosystem.