GCU Bio 182 Exam 2 Questions and Correct
Answers, 100% Correct. 2024/5. 174 Q&A.
Green Algae
____________ called charophytes are the closest relatives of land plants.
Land plants share four key traits with only charophytes
• Rings of cellulose-synthesizing complexes
• Peroxisome enzymes
• Structure of flagellated sperm
• Formation of a phragmoplast
Sporopollenin
In charophytes a layer of a durable polymer called _____________ prevents exposed zygotes from drying
out
Sporopollenin
______________ is also found in plant spore walls
Four key traits appear in nearly all land plants but are absent in the charophytes
• Alternation of generations and multicellular, dependent embryos
• Walled spores produced in sporangia
• Multicellular gametangia
• Apical meristems
Alternation of Generations
Plants alternate between two multicellular stages, a reproductive cycle called ___________
Gametophyte
The ____________ is haploid and produces haploid gametes by mitosis
Placental transfer cells
Nutrients are transferred from parent to embryo through ___________________
Embryophytes
Land plants are called ____________ because of the dependency of the embryo on the parent
Sporangia
The sporophyte produces spores in organs called ____________
Sporocytes
, Diploid cells called ___________ undergo meiosis to generate haploid spores
Sporopollenin
Spore walls contain _______________, which makes them resistant to harsh environments
Gametangia
Gametes are produced within organs called ______________
Archegonia
Female gametangia, called ____________, produce eggs and are the site of fertilization
Antheridia
Male gametangia, called ____________, produce and release sperm
Apical meristems
Plants sustain continual growth in their ____________
Cuticle
A waxy covering of the epidermis
Vascular tissue
Land plants can be informally grouped based on the presence or absence of _____________
Vascular plants
Most plants have vascular tissue; these constitute the _______________
Bryophytes
Nonvascular plants are commonly called ________
Bryophytes
_____________ are not a monophyletic group; their relationships to each other and to vascular plants is
unresolved
Lycophytes
Club mosses and their relatives
Seed
A _________ is an embryo and nutrients surrounded by a protective coat
Gymnosperms
The "naked seed" plants, including the conifers
Angiosperms
Answers, 100% Correct. 2024/5. 174 Q&A.
Green Algae
____________ called charophytes are the closest relatives of land plants.
Land plants share four key traits with only charophytes
• Rings of cellulose-synthesizing complexes
• Peroxisome enzymes
• Structure of flagellated sperm
• Formation of a phragmoplast
Sporopollenin
In charophytes a layer of a durable polymer called _____________ prevents exposed zygotes from drying
out
Sporopollenin
______________ is also found in plant spore walls
Four key traits appear in nearly all land plants but are absent in the charophytes
• Alternation of generations and multicellular, dependent embryos
• Walled spores produced in sporangia
• Multicellular gametangia
• Apical meristems
Alternation of Generations
Plants alternate between two multicellular stages, a reproductive cycle called ___________
Gametophyte
The ____________ is haploid and produces haploid gametes by mitosis
Placental transfer cells
Nutrients are transferred from parent to embryo through ___________________
Embryophytes
Land plants are called ____________ because of the dependency of the embryo on the parent
Sporangia
The sporophyte produces spores in organs called ____________
Sporocytes
, Diploid cells called ___________ undergo meiosis to generate haploid spores
Sporopollenin
Spore walls contain _______________, which makes them resistant to harsh environments
Gametangia
Gametes are produced within organs called ______________
Archegonia
Female gametangia, called ____________, produce eggs and are the site of fertilization
Antheridia
Male gametangia, called ____________, produce and release sperm
Apical meristems
Plants sustain continual growth in their ____________
Cuticle
A waxy covering of the epidermis
Vascular tissue
Land plants can be informally grouped based on the presence or absence of _____________
Vascular plants
Most plants have vascular tissue; these constitute the _______________
Bryophytes
Nonvascular plants are commonly called ________
Bryophytes
_____________ are not a monophyletic group; their relationships to each other and to vascular plants is
unresolved
Lycophytes
Club mosses and their relatives
Seed
A _________ is an embryo and nutrients surrounded by a protective coat
Gymnosperms
The "naked seed" plants, including the conifers
Angiosperms
