Protists

Question 1

What are the three groups of protists?

Answer 1

Animal-like, Plant-like and Fungi-Like (usually slime molds).

Question 2

What do all protists share in common?

Answer 2

Unicellular (most of them), Asexual reproduction (binary fission) and they are Eukaryotes.

Question 3

What are plant like protists?

Answer 3

These type of protists are plant-like because they contain chlorophyll (photosynthesis) and because of this, they are Autotrophic (in darkness they become heterotrophs by engulfing solid foods).

Question 4

What are characteristics of the Euglena?

Answer 4

Eyespot (light detection), Flagellum (movement), Vaculoles (collect/remove excess water), No cell wall, Food stored as starch and asexual reproduction (Longitudinal fission).

Question 5

What are animal-like protists?

Answer 5

They are protozoans. They are animal-like because they are heterotrophs (engulfment of food). They are also Eukaryotes.

Depending on how they move, they are classified as: Flagellates, Sporozoans, Sarcodines or Ciliates.

Question 6

What are Flagellates?

Answer 6

They are protists that move via the whipping motion of the Flagella.

Trypanosome (sleeping sickness. transmitted by fly).

Question 6

What are Sporozoans?

Answer 6

Sporozoans are Protists that cannot move on their own (have no pseudopods, cilia, or flagella).

Parasites:
Invade other organisms and move in their blood/body fluids

Question 7

What are Sarcodines?

Answer 7

Sarcodines are protists that move via psuedopods (false feet). Cytoplasm of pseudopod is extended and the flowing action allows them to move.

Question 8

Example of a Sarcodine?

Answer 8

Amoeba. They are the largest protozoan but the least complex. They reproduce via binary fission. They eat via phagocytosis.

Question 9

What are Ciliates?

Answer 9

Ciliates move using cilia (hair like structures outside the cell). It also captured food.

Question 10

Example of a Ciliate?

Answer 10

Paramecium (one of the most complex protozoans). Some features include: Cilia, Pellicle, Contractilre Vacuole, Oral Groove, Gullet, Anal pore, 2 nuclei and poison filled barbs).

Question 11

Fungi-like Protists?

Answer 11

Slime molds: Hetertrophs, most are decomposes. They live in cool damp habitats and they are also water molds.

Question 12

What are the three possible

Answer 12

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