Question

1 name three general methods of locomotion exhibited by protists and examples of organisms that utilize each method.
method of locomotion example
1
2
3
2 what structures or features do all protists have in common?
3 match the group with its correct description or characteristic.
kinetoplastid a. unicellular heterotroph with two types of nuclei
euglenoid b. flagella arise from grooves in cellulose plates
ciliate c. nonmotile parasite with penetrating apical region
dinoflagellate d. flagella arise from anterior pocket
apicomplexan e. unicellular parasite with one large mitochondrion
choanoflagellate f. unicellular heterotroph that moves using pseudopodia
amoeba g. sessile protist with single flagellum surrounded by collar
4 give two examples of parasitic protists and the disease they each cause.
1
2.
5 contrast the processes of binary fission and conjugation in ciliates.

Explanation:

Question 1

1. Method: Flagellar Locomotion - Protists use flagella (long, whip - like structures) to move. Example: Euglena (euglenoids use flagella for movement).
2. Method: Ciliary Locomotion - Cilia (short, hair - like structures) are used. Example: Paramecium (ciliates have numerous cilia for locomotion).
3. Method: Amoeboid Movement - Movement via pseudopodia (temporary projections of the cell). Example: Amoeba proteus (amoebas extend pseudopodia to move and capture food).

All protists are eukaryotic, meaning they have a true nucleus and membrane - bound organelles. They are also unicellular (or some are colonial, but the basic unit is a single cell), and they are all part of the domain Eukarya, distinct from prokaryotes (bacteria and archaea) in having a nucleus and other complex cellular structures.

• kinetoplastid: These are unicellular parasites with one large mitochondrion (matches option e).
• euglenoid: Flagella arise from an anterior pocket (matches option d).
• ciliate: Unicellular heterotroph with two types of nuclei (matches option a).
• dinoflagellate: Flagella arise from grooves in cellulose plates (matches option b).
• apicomplexan: Nonmotile parasite with a penetrating apical region (matches option c).
• choanoflagellate: Sessile protist with a single flagellum surrounded by a collar (matches option g).
• amoeba: Unicellular heterotroph that moves using pseudopodia (matches option f).

Answer:

Method of Locomotion	Example
Ciliary Locomotion	Paramecium
Amoeboid Movement	Amoeba proteus

Question 2