Ch. 19 Quiz

Question 1

Which group of protists was formerly thought to be fungi?

Answer 1

Oomycetes

Question 2

The diploid phase in the life cycle of the marine green alga Ulva, also called sea lettuce, consists of sheets of cells. The sporophyte contains specialized structures that produce spores. The haploid phase also consists of sheets of cells with either sperm- or egg-producing structures. The haploid and diploid phases are nearly identical in appearance. This life cycle is:

Answer 2

Dibiontic, isomorphic alternation of generations

Question 3

Phycoerythrin and phycocyanin are photosynthetic pigments found in:

Answer 3

Red algae

Question 4

Red tides are dangerous because the:

Answer 4

Dinoflagellates that cause them produce a strong neurotoxin

Question 5

There are many different species in the Chlorophyta that are motile colonies. In all of those colonies, the cells are held together by

Answer 5

A gelatinous matrix

Question 6

When cell division occurs in a diatom..

Answer 6

Both daughter cells use one parent frustule as their outer frustule; the result is two cells of unequal size

Question 7

Chlorophyll c is found in

Answer 7

Brown algae

Question 8

The pigments of the red algae most closely resemble the pigments of..

Answer 8

Cyanobacteria

Question 9

Which of the following correctly pairs the algal taxon with its characteristic food storage molecule?

Answer 9

Red algae - floridean starch

Question 10

Red algae

Answer 10

Floridean starch

Question 11

Some heterokonts (stramenophiles) are photosynthetic and gained their chloroplasts by:

Answer 11

Secondary endosymbiosis with a red alga