Kingdom Protista Flashcards Preview

Grade 11 Bio > Kingdom Protista > Flashcards

Flashcards in Kingdom Protista Deck (12):
1

Why are most Protists grouped together?

Because they do not fit into the other Kingdoms.

2

Are Protists unicellular or multicellular?

Most are unicellular but Algae is multicellular.

3

What are animal-like protists?

Protozoans
Examples: Ameoba, paramicia--found in ponds
Some species are parasites (sporazoans) ex. Plasmodium vivax
They are animal-like because they consume other organisms for food.

4

What are fungus-like protists?

Example: slime and water moulds
They are fungus-like because they absorb nutrients from other organisms, living or dead
some slime moulds consume other organisms. some water moulds are parasites

5

What are plant-like protists?

Example: Euglenoids, diatoms, dinoflagelates
They are plant like because they photosynthesize
some consume other organisms when light is unavailable.
Some live as symbionts within other organisms

6

Three types of unicellular plant-like protists: Diatoms

Phytoplankton
single-celled free-floating aquatic organisms
they have diffferent silica walls, glass-like

7

Three types of unicellular plant-like protists:Dinoflagellates

Phytoplankton
They have two flagella.
Under conditions like plentiful nutrients, they reproduce. The resulting population explosion is called a Bloom or Algal Bloom
In species that have red photosynthetic pigments, the bloom is referred to as a Red Tide. It produces a toxin that becomes concentrated in the tissues of plankton-eating shellfish. If humans eat those shellfish, they can become seriously ill or die.

8

Euglenoids (could be considered as plant or animal-like)

have plant and animal-like characteristics (chloroplast and flagella)
have a light-detecting structure called an eyespot

9

Multicellular plant-like protists (algae)

commonly called seaweeds
grouped into 3 phyla based on colour. Green, Red and Brown Algae.

10

Brown Algae

Kelp
Can grow 60m tall

11

Red Algae

Appear to have been the first multicellular organisms on earth

12

Green Algae

most are in fresh water but some are in salt
most green algae are aquatic, lichen-fungus and algae are land
volvox--ball-shaped colonies--thought to have given rise to multicellular plants