Protists 3

Question 1

What are Alveolates?

Answer 1

The alveolates are singlecelled organisms with small cavities (alveoli) beneath their cell membrane for structure

Question 2

What are the major groups of the alveolates?

Answer 2

The major groups of alveolates include dinoflagellates, apicomplexans, and ciliates

Question 3

The most complex alveolate, Ciliate contain what parts?

Answer 3

ciliates possess an anal pore, a food groove, 2 nuclei, contractile vacuoles and other specialized organelles including many cilia

Question 4

Rhyzarians have what features?

Answer 4

Rhyzarians have wispy, thin, and threadlike pseudopods that project from openings in hard shells in many species

Question 5

Foraminiferans are primarily ____ that produce _______

Answer 5

Foraminiferans are primarily marine protists that produce beautiful shells of calcium carbonate

Question 6

What happens when food becomes scarce?

Answer 6

Cells aggregate into a slug-like mass called pseudoplasmodium

Question 7

Amoebozoans

Answer 7

Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae

Question 8

How do the acellular slime molds engulf organic matter?

Answer 8

In acellular slime molds like Physarum, thousands of diploid cells fuse to form a multinucleated mass called a plasmodium which engulfs organic matter