Protozoans and Parasites

What do all protozoans have in common?

• They are eukaryotes and their basic cell type is the animal-type cell.

• They can make their own food through photosynthesis

• They live in saltwater environments

• They are multicellular

What might happen if a protozoan was missing its flagellum?

• It wouldn't be able to digest food.

• It wouldn't be able to swim.

• It wouldn't be able to reproduce.

• It wouldn't be able to breathe.

Where might a parasitic protozoan live?

• In a pig's intestines
• All of these! 
• On the surface of a pond
• In the mud of a riverbank

How does an amoeba move?

• It uses cilia

• It uses flagellum

• It uses amoeboid movement.

• It cannot move

What is the name of the hair-like structures on some protozoans like paramecium have, that are used for movement?

• tentacles

• trichocysts

• Flagella

• Cilia

How do paramecium move?

• Cilia

• Flagella

• pseudopods or amoeboid movement

a pseudopod is a(n) __________.

• extra nucleus for reproduction

• an extension of the cytoskeleton for movement

• whip-like extension for locomotion

• second stage of protozoan life cycle

What is a common way that pathogenic protozoa are transmitted? 

• eating undercooked food
• fecal-oral contact
• airborne
• sexual contact

What is the function of the contractile vacuole?

• remove waste
• digest and transport food
• remove excess water
• mitosis

A relationship when one organism lives on or within another organism and also feeds on that organism.

• parasitic

• symbiotic

• photosynthetic

• chemical