Biol 15N Marine Biology » Winter 2020 » Quiz 6

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Question #1
Alternation of generations is a central concept to organismal biology, especially in plants and macroalgae. In this construct, the sporophyte generation (the spore producing body form) is ____ and the gametophyte generation (gamete producing body form) is _____ .
A.   both are haploid (n)
B.   both are diploid (2n)
C.   haploid (n), diploid (2n)
D.   diploid (2n), haploid (n)
Question #2
Spores and gametes are important in algae reproduction, but they are generated by different processes. In most cases, the sporophyte produces haploid spores through _____ while the gametophyte produced haploid gametes by ______ .
A.   meiosis, mitosis
B.   mitosis, meiosis
C.   sexual reproduction, asexual reproduction
D.   cell division, cell fussion
Question #3
Phycobilins are a dominant photosynthetic pigment in ________ algae.
A.   Crysophyta (golden)
B.   Rhodophyta (red)
C.   Chlorophyta (green)
D.   Phaeophyta (brown)
Question #4
The Sargasso Sea is an in the north Atlantic Ocean filled with drift algae (Sargassum spp.) from the West Indies and elsewhere. This algae is in from the phylum ______ .
A.   Chrysophyta
B.   Rhodophyta
C.   Phaeophyta
D.   Chlorophyta
Question #5
All marine macroalgae store energy from photosynthesis in the form of starch.
A.   FALSE
B.   TRUE
Question #6
In California, the giant kelp dominates kelp forests. What is the genus for this organism? 
A.   Macrocystis
B.   Sargassum
C.   Laminaria
D.   Egregia
Question #7
The air bladders of giant kelp and other macroalgae are a highly evolved structure that keeps the kelp blades erect in the water column and helps maintain the structure of the kelp (vertically positioned). Name this structure.
A.   thalli
B.   holdfast
C.   stipe
D.   pneumatocyst
Question #8
Spores equipped with flagella that are motile are called ______ .
A.   gametes
B.   spores
C.   motospores
D.   zoospores

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