Prokaryotes and Eukaryotes Overview

What distinguishes protists from bacteria?

Which type of protozoan moves using flagella?

What is a characteristic of sporozoans?

Which statement about protozoans is true?

What are the hair-like projections on ciliates called?

Which of the following is an example of a sporozoan?

What is the movement mechanism of sarcodines?

Which term is used to describe an organism that feeds on other organisms?

Which of these is not a characteristic of protists?

What type of nutrition method do autotrophic protists utilize?

What characteristic differentiates protists as eukaryotic organisms?

Which group of protozoans is recognized for utilizing whip-like extensions for movement?

Which of the following best describes sporozoans?

What movement mechanism do sarcodines utilize?

Among the following, which protist is most commonly recognized for causing diseases in humans?

What type of nutrition do heterotrophic protists rely on?

Which characteristic is shared by all protozoans?

What distinguishes ciliates from other groups of protozoans?

How do zooflagellates typically assist in their symbiotic relationships?

What is a common feature of all protists in the supergroup classification?

Prokaryotes vs. Eukaryotes

Prokaryotes lack a nucleus and membrane-bound organelles.
Eukaryotes have a nucleus and membrane-bound organelles.

Protists

Mostly unicellular
Eukaryotic
Divided into four "Supergroups"
Classified into three categories:
- Heterotrophs (animal-like)
- Autotrophs (plant-like)
- Decomposers (fungus-like)

Protozoa

Unicellular
Eukaryotic
Heterotrophic
Move

Sarcodines

Move by extending cytoplasm, called a pseudopod.
Example: Amoeba

Zooflagellates

Use flagella for movement.
Examples: Trichonympha (digests cellulose in termites) and Trypanosoma (causes African Sleeping Sickness)

Ciliaphorans (Ciliates)

Largest group of protozoans
Cover their bodies with cilia.
Example: Paramecium

Sporozoans

Do not move
Parasitic protozoans
Form spores
Live by parasitizing animals
Can reproduce sexually and asexually
Example: Plasmodium (causes malaria)
- Immature sporozoans are called sporozoites
- Transmitted through fluids

Prokaryotes vs Eukaryotes

Prokaryotes do not have a nucleus or membrane-bound organelles.
Eukaryotes have a nucleus and membrane-bound organelles.

Protists

Mostly unicellular organisms
Eukaryotes
Not plants nor animals
Classified into four supergroups
Can be heterotrophs (animal-like), autotrophs (plant-like), or decomposers (fungus-like).

Protozoans (Animal-like Protists)

Unicellular
Eukaryotic
Heterotrophs
Can move

Sarcodinians

Move using cytoplasm extensions called pseudopods.
Example: Amoeba

Zooflagellates

Use whip-like extensions called flagella for movement.
Example: Trichonympha (lives in termite guts and digests cellulose)
Example: Trypanosoma (lives in tsetse flies and causes African Sleeping Sickness)

Ciliaphorans (Ciliates)

Largest group of protozoans
Have tiny hair-like cilia covering their bodies
Example: Paramecium

Sporozoans

Parasitic protozoans that do not move
Form spores
Live by being parasites on or in animals.
Can reproduce sexually and asexually
Example: Plasmodium (causes malaria)
Immature sporozoans are called sporozoites and can be transmitted through fluids from host to host.

Explore the differences between prokaryotes and eukaryotes in this quiz, covering the characteristics of protists and various types of protozoans. Learn about their classifications, modes of movement, and examples of each group. Ideal for biology students looking to enhance their understanding of cellular structures.