WSU Biology 106 Exam Two Questions With 100% Verified Answers.
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Course
WSU Biology 106
Institution
WSU Biology 106
WSU Biology 106 Exam Two Questions With
100% Verified Answers.
Land plants evolved from _____. - answerGreen Algae
________ are the closest relatives of land plants. - answerCharophyceans
What are the four key traits land plants share only with charophyceans? - answer1. Structure of
flagellate...
WSU Biology 106 Exam Two Questions With
100% Verified Answers.
Land plants evolved from _____. - answer✔Green Algae
________ are the closest relatives of land plants. - answer✔Charophyceans
What are the four key traits land plants share only with charophyceans? - answer✔1. Structure of
flagellated sperm
2. Rose-shaped complexes (cellulose synthesis)
3. Peroxisome enzymes (photorespiration)
4. Phragmoplast
In charophyceans, __________ prevents exposed zygotes from drying out -
answer✔Sporopollenin
Sporopollenin can be found in: - answer✔Charophyceans, spores, and pollen
What five key traits appear in nearly all land plants but are absent in the charophyceans? -
answer✔1. Apical meristems
2. Alternation of Generation
3. Walled spores produced in sporangia
4. Multicellular gametangia
5. Multicellular dependant embryos
Two derived traits that helped land plants survive on land: - answer✔1. Cuticle
2. Secondary Compounds
Land plants can be informally grouped based on the presence of ________. - answer✔Vascular
Tissue
The life cycles of mosses and
other bryophytes are dominated by the _________ stage. - answer✔gametophyte
Three phyla of bryophytes: - answer✔Hepatophyta (liverworts)
Anthocerophyta (hornworts)
Bryophyta (Mosses)
In all three bryophyte phyla
_________ are larger and longer-living than __________. - answer✔Gametophytes, sporophytes
Gametophyte - answer✔multicellular phase, haploid,
contains a single set of chromosomes
Sporophyte - answer✔(multicellular phase, diploid,
contains a full double set of chromosomes
_______ and other ________ were the first plants to grow tall. - answer✔Ferns, seedless
vascular plants
_______ are dominant in the life cycle of seedless vascular plants - answer✔Sporophytes
What are the two types of tissue vascular plants contain? - answer✔Xylem ( Includes dead cells,
conducts water & minerals)
Phloem ( Living cells, distributes nutrients)
Most seedless vascular plants
are ________, producing one type of
spore that develops into a ________. - answer✔homosporous, bisexual gametophyte
All seed plants
are _________ , having two types of
spores that give rise to _____________________. - answer✔heterosporous, male and female
gametophytes
What are the two phyla for seedless vascular plants: - answer✔1. Lycophyta (rare)
2. Pterophyta (ferns, horsetails)
What is an example of a lycophytes? - answer✔Whisk ferns, horsetails
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