BSC 464 Exam 2 comprehensive questions |
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Terms in this set (117)
Alteration of generations
A) tetrasporophyte 2N
Triphasic
B) Gametophyte 1N
C) Carposporophyte 2N
Tetrasporophyte 2N produces tetraspores by meiosis
Tetrasporophyte is similar in appearance to
Isomorphic
gametophyte
Tetrasporophyte and gametophyte differ in
Heteromorphic
appearance
Special oogamy; male gamete nonflagellated
Trichogamy spermatium formed by spermatangium and female
gamete carpogonium with an elongated trichogyne
Trichogyne Elongated hair of the female gamete
2N lives as a parasite on female gametophytes and
Carposporophyte
produces carpospores
Formed by the carposporophyte by mitosis and
Carpospores
germinate into a diploid tetrasporophyte
Gonimoblast Filaments that produce carposporangia
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, 10/15/25, 1:15 PM BSC 464 Exam 2 comprehensive questions | FREQUENTLY MOST TESTED QUESTIONS AND VERIFIED SOLUTIONS/GET IT …
1N a protective envelope developed by the cells of
Pericarp
the gonimoblast
Ostiole Pore of the pericarp
Formed by the pericarp and the gonimoblast (fruiting
Cystocarp
body)
A uniseriate branch, two to seven cells long which
Carpogonial branch
bears the terminal carpogonium
A cell which produces the carposporophyte following
Auxiliary cells
the migration of the diploid zygote
Aseptated filaments through which the zygotic
Connecting filaments nucleus is transferred from the carpogonium to the
auxiliary cell
Close association of the supporting cell, carpogonial
Procarpic
branch, and auxiliary cell in the one branch system
Germinates into a haploid female or male
Tetraspore
gametophyte
Floridean. Crustose algae with zonated
Hildenbrandia tetrasporangia, reproductive structures in the
conceptacles, and membrane pit plugs
Floridean. With two cap layer pit plugs. Lives in
Batrachospermum freshwater environments. Uni or multiaxial with no
auxiliary cells. Heteromorphic life cycle.
Floridean. Two layer pit plug, marine, multiaxial,
auxiliary cell present before fertilization, triphasic life
Corallinopycidae
cycle, isomorphic, calcified cell walls, conceptacles
reproductive structure
Floridean Starch Polysaccharide carbohydrate reserve in red algae
Blue and red pigments soluble in organic solvents
Phycobilin
and lipids; located in phycobilisomes
R-Phycocyanin Pigment in red algae
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