WSU BIOLOGY 106 EXAM 1 ,2,3,4,5 AND FINAL COMPLETE COURSE
ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES |ALREADY GRADED A+
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
Seed plant are ___ mil years old. - ANSWER: 360
A seed is: - ANSWER: A reproductive organ
____ and ____ are key adaptations for life on land. - ANSWER: seeds, pollen
What four things are common to all seed plants? - ANSWER: 1. Reduced
gametophytes
2. heterospory
3. ovules
4. pollen
Bryophytes are ________ dominant. - ANSWER: gametophyte
Seedless vascular plants are _______ dominant. - ANSWER: Sporophyte
ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES |ALREADY GRADED A+
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
Seed plant are ___ mil years old. - ANSWER: 360
A seed is: - ANSWER: A reproductive organ
____ and ____ are key adaptations for life on land. - ANSWER: seeds, pollen
What four things are common to all seed plants? - ANSWER: 1. Reduced
gametophytes
2. heterospory
3. ovules
4. pollen
Bryophytes are ________ dominant. - ANSWER: gametophyte
Seedless vascular plants are _______ dominant. - ANSWER: Sporophyte
