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