Animal-like protists (w/ cilia & sporozoans)

Question 1

Protists w/ cilia (often called ciliates)

Answer 1

1. They move by beating tiny-hair structures called cilia
2. They have a skeleton-like covering called pellicle, made of polysaccharides
3. They have a mouth like opening at 1 end of their bodies called the oral groove

Question 2

What is the most common species of ciliates?

Answer 2

1. The freshwater Paramecium
2. It’s shaped like the bottom of a shoe
3. They can reproduce sexually or asexually
4. It has 1 large macronucleus & 1 smaller micronucleus

Question 3

What are the 2 types of nuclei that ciliates have?

Answer 3

1. A single large marcronucleus (operates as the director of the cell’s activities - like a little brain)
2. & 1 or more smaller micronucleus (used for reproduction)

Question 4

What is the only member of the ciliate family that causes human disease?

Answer 4

1. Balantidium coli - causes severe diarrhea

2. Mainly in developing countries, where water sources may be contaminated w/ pig or human waste