347060146 | Charophyta | 29: Closest algal relatives of land plants | |
347060147 | Bryophyte | 29: Mosses (nonvascular, homosporous, gametophyte dominant, no seeds) | |
347060148 | Pterophyte | 29: Ferns (vascular, homosporous, sporophyte dominant, no seeds) | |
347060149 | Gymnosperm | 29: Conifers (vascular, heterosporous, sporophyte dominant, seeds) | |
347060150 | Angiosperm | 29: Flowering plants (vascular, heterosporous, sporophyte dominant, seeds) | |
347060151 | Phragmoplast | 29: a group of microtubules that develops into the cell plate in dividing cells | |
347060152 | Apical meristem | 29: localized regions of cell division at the tips of roots and shoots (primary growth) | |
347060153 | Cuticle | 29: waxy covering that prevents dehydration (land plant adaptation) | |
347060154 | Sporopollenin | 29: durable polymer that prevents zygotes from drying out (land plant adaptation) | |
347060155 | Rhizoid | 29: long, tubular single cells or filaments of cells (exp. anchor bryophyte gametophytes) | |
347060156 | Sporophyte | 29: multicellular, diploid plant | |
347060157 | Sporangium | 29: spore-producing organs on the sporophyte | |
347060158 | Spore | 29: haploid reproductive cell that develops into a gametophyte | |
347060159 | Gametophyte | 29: gamete-producing organs on the gametophyte | |
347060160 | Archegonia | 29: female gametanga | |
347060161 | Antheridia | 29: male gametangia | |
347060162 | Phloem | 29: vascular tissue that transports sugars, amino acids, and other organic products | |
347060163 | Xylem | 29: vascular tissue that transports water and minerals | |
347060164 | Vascular plant | 29: plants with a complex vascular tissue system | |
347060165 | Heterosporus | 29: two types of sporangia that produce two kinds of spores - megaspores and microspores | |
347060166 | Homosporus | 29: one type of sporangium that produces one type of spore, which develops into a bisexual gametophyte | |
347060167 | Megaspore | 29: develop into female gametophytes | |
347060168 | Microspore | 29: develop into male gametophytes | |
347060169 | Anther | 29: part of the stamen that contains pollen in flowering plants | |
347060170 | Pollen | 29: microspores of seed plants | |
347060171 | Carpel/pistil | 29: female gametophytes in angiosperms | |
347060172 | Double fertilization | 29: one pollen contains two sperm - one fertilizes the egg, while the other joins with a cell to form the endosperm | |
347060173 | Endosperm | 29: 3n section of the seed, provides nutrients for the embryo | |
347060174 | Ovule | 30: contains the integument (2n), megaspore (n), and megasporangium (2n) | |
347060175 | Ovary | 30: contains one or more ovules. If fertilized, this structure develops into a seed/fruit | |
347060176 | Integument | 30: envelops and protects the megasporangia | |
347060177 | Seed | 30: embryo packaged with nutrient supply and protective coat | |
347060178 | Fruit | 30: mature angiosperm ovary | |
347060179 | Monocot | 30: species with one cotyledon | |
347060180 | Dicot | 30: species with two cotyledons | |
347060181 | Cotyledon | 30: the first leaf (or leaves) to appear from a germinating seed | |
347060182 | Organ | 35: a collection of tissues that carry out one or more specialized functions | |
347060183 | Tissue | 35: a group of cells (one or more types) preforming a specialized function | |
347060184 | Root | 35: organ that anchors a vascular plant in the soil, absorbs minerals and water, and stores carbohydrates | |
347060185 | Taproot | 35: one main vertical root that develops from embryonic root | |
347060186 | Fibrous roots | 35: monocot roots that are highly branched, as opposed to the taproo | |
347060187 | Root hair | 35: thin tube-like extension of a root epidermal cell - increase surface area for absorption | |
347060188 | Apical dominance | 35: the inhibition of axillary buds by the apical bud | |
347060189 | Apical bud | 35: terminal bud at the shoot tip, composed of developing leaves, nodes, and internodes | |
347060190 | Axillary bud | 35: may form a lateral shoot (branch) | |
347060191 | Rhizome | 35: root-like stems that send out lateral shoots | |
347060192 | Dermal tissue | 35: plant's outer protective covering (epidermis, cuticle, periderm, etc.) | |
347060193 | Vascular tissue | 35: long-distance transport of materials between root and shoot systems (xylem, phloem) | |
347060194 | Ground tissue | 35: tissues that are neither dermal nor vascular | |
347060195 | Pith | 35: closer to the CENTER in relation to the vascular tissue | |
347060196 | Cortex | 35: closer to the EDGES in relation to the vascular tissue | |
347060199 | Tracheids | 35: long, thin cells with tapered ends - water moves from cell to cell through the pits (xylem) | |
347060200 | Vessel elements | 35: wide, short, form micropipes for water (xylem) | |
347060202 | Sieve tube elements | 35: living cells with no nucleus, organelles, allowing for easier passing of nutrients (phloem) | |
347060203 | Companion cells | 35: connected to sieve tub elements by plasmodesmata for sharing organelles, load sugars into sieve-tubes (phloem) | |
347060204 | Parenchyma cells | 35: cells with primary walls that are thin and flexible | |
347060205 | Collenchyma cells | 35: cells with unevenly thick primary walls - supports plant | |
347060206 | Sclerenchyma cells | 35: supporting elements - rigid, thick secondary walls made of lignin | |
347060207 | Indeterminate growth | 35: growth that occurs throughout life | |
347060208 | Determinite growth | 35: growth that stops after a certain size is reached | |
347060209 | Primary growth | 35: growth vertically (roots, apical meristems) | |
347060210 | Secondary growth | 35: growth in girth (vertical and cork cambria) | |
347060211 | Apical meristem | 35: tips of shoots and roots, apical buds, axillary buds, primary growth | |
347060212 | Lateral meristem | 35: cause secondary growth (vertical and cork cambria) | |
347060213 | Vascular cambium | 35: add layers of secondary xylem (inside edge) and secondary phloem (outside edge) | |
347060214 | Cork cambium | 35: replaces epidermis with tougher periderm | |
347060215 | Zone of cell division | 35: (root growth) includes apical meristem, root cap | |
347060216 | Zone of elongation | 35: (root growth) most growth occurs here | |
347060217 | Zone of differentiation | 35: (root growth) maturation of cells, become distinct types | |
347060218 | Stomata | 35: pores that allow gas exchange in the leaves | |
347060219 | Guard cells | 35: regulate opening and closing of stomata | |
347060220 | Mesophyll | 35: ground tissue of leaf between upper and lower epidermal layers (parenchyma specialized in photosynthesis) | |
347060221 | Bundle sheath | 35: tightly packed cells surrounding vascular bundle - regulate flow and protect bundle | |
347060222 | Apoplast | 36: everything external to the plasma membranes of living cells, including cell walls, extracellular spaces, and interior of dead cells such as vessel elements and tracheids | |
347060223 | Symplast | 36: entire mass of cytosol of all the living cells in a plant, as well as plasmodesmata | |
347060224 | Xylem sap | 36: water and minerals transported in xylem | |
347060225 | Endodermis | 36: innermost layer of cortex that surrounds vascular tissue in the roots | |
347060226 | Casparian strip | 36: a barrier made of suberin in the radial and transverse walls of endodermis that blocks passage of water and minerals into vascular cylinder | |
347060227 | Bulk flow | 36: the movement of water due to a pressure difference | |
347060228 | Cohesion-tension hypothesis | 36: transpiration provides the pull for the ascent of xylem sap, and cohesion of water transmits this pull along the entire length of xylem from shoots to roots | |
347060229 | Cohesion | 36: attraction between particles of the same substance | |
347060230 | Adhesion | 36: attraction between particles of different substances | |
347060231 | Transpiration | 36: loss of water vapor from leaves or other aerial parts of plant | |
347060232 | Negative pressure | 36: pressure below atmospheric pressure - a partial vacuum | |
347060233 | Translocation | 36: the transport of the products of photosynthesis | |
347060234 | Phloem sap | 36: sugars and other organic products that are transported via phloem | |
347060235 | Sugar source | 36: a plant organ that is a net producer of sugar by photosynthesis or breakdown of starch | |
347060236 | Sugar sink | 36: a plant organ that is a net consumer or depository of sugar | |
347060237 | Positive pressure | 36: pressure above atmospheric pressure | |
347060238 | Mutualism | 37: mutually beneficial form of symbiosis | |
347060239 | Rhizobacteria | 37: soil bacteria with large populations in the rhizosphere, or soil around roots | |
347060240 | Nitrogen-fixing bacteria | 37: bacteria that can preform nitrogen fixation | |
347060241 | Nitrogen fixation | 37: reduction of atmospheric N2 to N3 (plants can't use N2 because it is inert) | |
347060242 | Crop rotation | 37: every year, a different crop is planted in a field to restore nitrogen concentration in soil | |
347060243 | Mycorrhizae | 37: mutualistic associations of roots and fungi | |
347060245 | Endosperm | 38: food-storing tissue of the seed | |
347060246 | Tropism | 39: growth response that results in plant organs curving toward or away from stimuli | |
347060247 | Phototropism | 39: growth of a shoot toward or away from light | |
347060248 | Gravitropism | 39: growth in response to the direction of gravity | |
347060249 | Thigmotropism | 39: turning or bending of plant in response to touch | |