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30 Cards in this Set

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A moss, liverwort, or hornwort; a nonvascular plant that inhabits the land but lacks many of the terrestrial adaptations of vascular plants.
vascular plants
A plant with vascular tissue. Vascular plants include all modern species except the mosses and their relatives.
vascular tissue
Plant tissue consisting of cells joined into tubes that transport water and nutrients throughout the plant body.
Seedless plants with true roots with lignified vascular tissue. The group includes ferns, whisk ferns, and horsetails.
An adaptation for terrestrial plants consisting of an embryo packaged along with a store of food within a resistant coat.
A vascular plant that bears naked seeds—seeds not enclosed in specialized chambers.
A flowering plant, which forms seeds inside a protective chamber called an ovary.
The green algal group that shares two ultrastructural features with land plants. They are considered to be the closest relatives of land plants.
rosette cellulose-synthesizing complexes
Rose-shaped array of proteins that synthesize the cellulose microfibrils of the cell walls of charophyceans and land plants.
An alignment of cytoskeletal elements and Golgi-derived vesicles across the mid-line of a dividing plant cell.
Another name for land plants, recognizing that land plants share the common derived trait of multicellular, dependent embryos.
placental transfer cells
Plant cells that enhance the transfer of nutrients from parent to embryo.
alternation of generations
A life cycle in which there is both a multicellular diploid form, the sporophyte, and a multicellular haploid form, the gametophyte; characteristic of plants.
The multicellular haploid form in organisms undergoing alternation of generations that mitotically produces haploid gametes that unite and grow into the sporophyte generation.
The multicellular diploid form in organisms undergoing alternation of generations that results from a union of gametes and that meiotically produces haploid spores that grow into the gametophyte generation.
is a reproductive cell that can develop into a new organism without fusing with another cell
A secondary product, a polymer synthesized by a side branch of a major metabolic pathway of plants that is resistant to almost all kinds of environmental damage; especially important in the evolutionary move of plants onto land.
(plural, sporangia) A capsule in fungi and plants in which meiosis occurs and haploid spores develop.
spore mother cells
The cells that undergo meiosis and generate haploid spores within a sporangium.
(plural, gametangia) The reproductive organ of bryophytes, consisting of the male antheridium and female archegonium; a multichambered jacket of sterile cells in which gametes are formed.
(plural, archegonia) In plants, the female gametangium, a moist chamber in which gametes develop.
(plural, antheridia) In plants, the male gametangium, a moist chamber in which gametes develop.
A waxy covering on the surface of stems and leaves that acts as an adaptation to prevent desiccation in terrestrial plants
A microscopic pore surrounded by guard cells in the epidermis of leaves and stems that allows gas exchange.
The tube-shaped, nonliving portion of the vascular system in plants that carries water and minerals from the roots to the rest of the plant.
The portion of the vascular system in plants consisting of living cells arranged into elongated tubes that transport sugar and other organic nutrients throughout the plant.
"deep green"
An international initiative focusing on the deepest phylogenetic branching within the plant kingdom to identify and name the major plant clades
Kingdom Streptophyta
The name given to the group that includes the traditional plant kingdom and the green algae most closely related to plants, the charophyceans and a few related groups.
Kingdom Viridiplantae
The broadest version of the plant kingdom that includes the members of the kingdom Streptophyta plus the chlorophytes (non-charophycean green algae).
Kingdom Plantae
The traditional embryophyte definition of the plant kingdom.