Terms : Hide Images
| 51100200 | adventitious roots | when roots develop from organs of the shoot system instead of the root system | |
| 51100201 | annual ring | layer of wood usually produced during one growing season | |
| 51100202 | apical meristem | masses of cells in the root | |
| 51100203 | axillary (lateral) bud | may become a branch or a flower | |
| 51100204 | bark | contains periderm and phloem | |
| 51100205 | blade | wide portion of a foliage leaf | |
| 51100206 | bud scales | modified leaves (used for protection) | |
| 51100207 | casparian strip | prevents the passage of water and mineral ions between adjacent cell walls | |
| 51100208 | collenchyma | main use is storage; like parenchyma, except they have thicker primary walls | |
| 51100209 | complex tissues | composed of two or more kinds of cells | |
| 51100210 | cork cambium | located beneath epidermis; when it begins to divide it produces tissue that disrupts the epidermis and replaces it with cork cells | |
| 51100211 | cork cells | makes up the majority component of periderm; made by a meristem called cork cambium | |
| 51100212 | cortex | made up of large, thin-walled parenchyma cells | |
| 51100213 | cotyledons | seed leaves | |
| 51100214 | cuticle | waxy layer covering epidermis (helps minimize water loss) | |
| 51100215 | deciduous | plants that lose their leaves every year | |
| 51100216 | endodermis | single layer of rectangular cells that forms a boundary between the cortex and the inner vascular cylinder | |
| 51100217 | epidermal tissue | forms the outer protective covering of a plant | |
| 51100218 | epidermis | protective layer in both non-woody and woody plants | |
| 51100219 | eudicots | (eudiocotyledons) plants that have two cotyledons | |
| 51100220 | evergreens | plants that retain their leaves for two to seven years | |
| 51100221 | fibrous root system | root system made up of all the slender roots and their lateral branches | |
| 51100222 | ground tissue | fills the interior of a plant | |
| 51100223 | herbaceous stems | exhibit only primary growth; non-woody stem | |
| 51100224 | internode | region between the nodes | |
| 51100225 | leaf veins | where vascular tissue is located in leaves | |
| 51100226 | leaves | major part of plant that carries on photosynthesis | |
| 51100227 | lenticels | breaks on the surface of periderm | |
| 51100228 | lignin | which is a highly resistant organic substance that makes the walls tough and hard | |
| 51100229 | mesophyll | inner, thickest layer of a leaf (consisting of palisade and spongy); site of most of photosynthesis | |
| 51100230 | monocots | name for plants that have one cotyledon | |
| 51100231 | mycorrhizae | associates between roots and fungi that can extract water and minerals from the soil (better than roots that lack a fungus partner) | |
| 51100232 | node | occurs where leaves are attached to the stem | |
| 51100233 | organs | structures that contain different tissues and perform one or more specific functions | |
| 51100234 | palisade mesophyll | containing elongated cells | |
| 51100235 | parenchyma | alive, supportive; least specialized, most abundant | |
| 51100236 | perennial | flowering plant that lives more than one growing season (because the underground parts regrow each season) | |
| 51100237 | pericylce | first layer of cells within the vascular cylinder | |
| 51100238 | periderm | replaces the epidermis of older woody plants | |
| 51100239 | petiole | stalk that attached the blade to the stem | |
| 51100240 | phloem | transports sucrose and other organic compounds, including hormones, usually from the leaves to the roots | |
| 51100241 | pith | tissue in the center of some stems and roots | |
| 51100242 | pits | depressions; where the secondary wall does not form | |
| 51100243 | primary root | grows straight down; remains the dominant root of the plant | |
| 51100244 | protoderm | outermost primary meristerm that gives rise to epidermis | |
| 51100245 | rhizomes | rootlike underground stem | |
| 51100246 | root cap | protects apical meristem | |
| 51100247 | root hairs | projections from epidermas; increase surface area for absorption of water and minerals | |
| 51100248 | root nodules | where nitrogen-fixing bacteria live | |
| 51100249 | root system | consists of the roots | |
| 51100250 | sclerenchyma | dead, hard; have thick secondary cell walls impregnated with lignin | |
| 51100251 | shoot apical meristem | group of actively dividing embryonic cells at the tips of plant shoots | |
| 51100252 | shoot system | consists of stems, branches, and leaves | |
| 51100253 | sieve-tube members | arranged to form a continuous sieve tube; members contain cytoplasm but no nuclei | |
| 51100254 | spongy mesophyll | countaining irregular cells bounded by air spaces | |
| 51100255 | stem | main axis of a plant | |
| 51100256 | stolons | stem that grows horizontally above ground; may give rise to new plants where it contacts the soil | |
| 51100257 | stomata | regulates gas exchange and water loss | |
| 51100258 | taproot | main axis of a root; stores food and is often fleshy | |
| 51100259 | terminal bud | contains the shoot tip protected by bud scales | |
| 51100260 | tracheids | elongated with tapered ends | |
| 51100261 | trichomes | hairs produced by epidermal cells; protective from sun and conserve moisture | |
| 51100262 | vascular bundles | where vascular tissue is located in the stem | |
| 51100263 | vascular cambium | lateral meristem that produces secondary phloem and xylem | |
| 51100264 | vascular cylinder | where vascular tissue is located in roots | |
| 51100265 | vascular tissue | transports water and nutrients in a plant and provides support (consists of xylem and phloem) | |
| 51100266 | vessel elements | long and tubular with perforation plates at each end | |
| 51100267 | wood | secondary xylelm that buidls up year after year, thereby increasing the girth of trees | |
| 51100268 | xylem | transports water and minerals from the roots to the leaves | |
| 52062572 | spring wood | wide xylem and vessels; abundant water | |
| 52062573 | summer wood | water is low; fewer vessles; thick walls |
