- | Page
GCU BIO-182 EXAM 2 WITH 100%
CORRECT ANSWER S
Question : What type of algae, called charophytes, are the
closest relatives of land plants?
CORRECT ANSWER : Green Algae
Question : What four key traits do land plants share with
only charophytes?
CORRECT ANSWER : • Rings of cellulose-synthesizing
complexes• Peroxisome enzymes• Structure of flagellated sperm• Formation of a phragmoplast
Question : In charophytes, what layer of a durable
polymer prevents exposed zygotes from drying out?
CORRECT ANSWER : Sporopollenin
Question : What durable polymer is also found in plant
spore walls?
CORRECT ANSWER : Sporopollenin
- | Page
Question : What four key traits appear in nearly all land
plants but are absent in the charophytes?
CORRECT ANSWER : • Alternation of generations and
multicellular, dependent embryos• Walled spores produced in sporangia• Multicellular gametangia • Apical meristems
Question : What is the reproductive cycle called where
plants alternate between two multicellular stages?
CORRECT ANSWER : Alternation of Generations
Question : What is the haploid stage in alternation of
generations that produces haploid gametes by mitosis?
CORRECT ANSWER : Gametophyte
Question : Through what structures are nutrients
transferred from parent to embryo in land plants?
CORRECT ANSWER : Placental transfer cells
- | Page
Question : What are land plants called because of the
dependency of the embryo on the parent?
CORRECT ANSWER : Embryophytes
Question : In what organs does the sporophyte produce
spores?
CORRECT ANSWER : Sporangia
Question : What are the diploid cells within sporangia that
undergo meiosis to generate haploid spores?
CORRECT ANSWE R: Sporocytes
Question : What polymer found in spore walls makes
them resistant to harsh environments?
CORRECT ANSWER : Sporopollenin
Question : What are the organs called where gametes are
produced in land plants?
CORRECT ANSWER : Gametangia
- | Page
Question : What are the female gametangia called, which
produce eggs and are the site of fertilization?
CORRECT ANSWER : Archegonia
Question : What are the male gametangia called, which
produce and release sperm?
CORRECT ANSWER : Antheridia
Question : In what regions do plants sustain continual
growth?
CORRECT ANSWER : Apical meristems
Question : Define Cuticle
CORRECT ANSWER : A waxy covering of the
epidermis
Question : Land plants can be informally grouped based
on the presence or absence of what type of tissue?