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Bio. Vocab. ch. 23
Vocabulary. What did you expect?
| Term | Definition |
|---|---|
| Cuticle | A waxy or fatty and watertight layer on the external wall of epidermal cells |
| Stoma | One of many openings in a leaf or stem of a plant that enable gas change to occur |
| Guard Cell | One of a pair of specialized cells that border a stoma and regulate gas change |
| Vascular System | A conducting system of tissues that transport water and other materials in plants or in animals |
| Nonvascular Plant | The three groups of plants(liverworts,hornwarts,and mosses) that lack specialized conducting tissues and true roots,stems,and leaves |
| Vascular Plant | A plant that has a vascular system composed of xylem and phloem,specialized tissues that conduct materials from one part of the plant to the other |
| Seed | A plant embryo that is enclosed in a protective coat |
| Embryo | An organism in an early stage of development of plants and animals;in humans,a developing individual is referred to as an embryo from the second through the eighth week of pregnancy |
| Seed Plant | A plant that produces seeds |
| Flower | The reproductive structure of a flowering plant that usually consists of a pistil,stamens,petals,and sepals |
| Phloem | The tissue that conducts food(sugars,amino acids,and mineral nutrients)in vascular plants |
| Xylem | The tissue that transports water and mineral nutrients |
| Shoot | The portion of a plant that grows mostly above the ground;includes the stem and leaves |
| Root | The mainly underground organ of vascular plants that holds plants in place and absorbs and stores water and minerals from the soil |
| Meristem | A region of undifferentiated plant cells that are capable of dividing and developing into specialized plant tissues |
| Rhi-zoid | A root-like structure in non-vascular plants,such as mosses or liverworts,that holds the plants in place and aids in absorption |
| Rhizome | A horizontal,underground stem that provides a mechanism for asexual reproduction |
| Frond | The leaf of a fern or palm |
| Cone | In plants,a seed-bearing structure |
| Gymnosperm | A woody vascular plant whose seeds are not enclosed by an ovary or fruit |
| Angiosperm | A flowering plant that produces seeds within a fruit |
| Fruit | A mature plant ovary;the plant organ in which the seeds are enclosed |
| Endo-sperm | A triploid(3n)tissue that develops in the seeds of angiosperms and that provides food for developing embryos |
| Mono-cot | A monocotyledonous plant;A plant that produces seeds that have only one cotyledon |
| Dic-ot | A dicotyledonous plant;an angiosperm that has two cotyledons,net venation,and flower parts in groups of four or five |
| Vega-tative Part | Any non-reproductive part of a plant |
| Cereal | Any grass that produces grains that can be used for food,such as rice,wheat,corn,oats,or barley |
| Grain | The edible seed or seed-like fruit of a cereal grass |
Created by:
TailsFan55
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