Cuticle

1. Cuticle Waxy, waterproof layer that covers the leaves and stems of most plants Internal transporting tissue in some plants that is made up of tube-like structures Vascular Tissue Zygote A fertilized egg, produced by the joining of a sperm and an egg A low growing plant that lacks true vascular tissue Nonvascular Plant Vascular Plant A plant with true vascular tissue

2. Sporophyte The stage in the life cycle of a plant in which the plant produces spores The stage in the life cycle of a plant in which the plant produces gametes or sex cells Gametophyte Rhizoid A thin, root like structure that anchors a moss and absorbs water and nutrients The leaf of a fern plant Frond Phloem The vascular tissue through which food moves in some plants

3. Xylem The vascular tissue through which water and nutrients move in some plants Tiny particles (male gametophytes) produced by seed plants that contain the cells that will become sperm cells Pollen Seed The plant structure that contains a young plant within a protective covering A young organism that develops from a zygote Embryo Cotyledon A seed leaf

4. Germination The sprouting of an embryo from a seed that occurs where the embryo resumes growth A structure that covers the tip of the root, protecting the root from injury Root Cap Cambium A layer of cells in a plant that produces new phloem and xylem cells The process by which water is lost through a plant’s leaves Transpiration Gymnosperm A plant that produces seeds that are not enclosed by a protective fruit

5. Cone The reproductive structure of a gymnosperm A structure that contains an egg cell Ovule Pollination The transfer of pollen from the male reproductive structures to the female reproductive structures in a plant A flowering plant that produces seeds enclosed in a protective structure Angiosperm Flower The reproductive structure of an angiosperm

6. Sepal A leaf like structure that encloses the bud of a flower The colorful, leaf like structure of some flowers Petal Stamen A male reproductive part of a flower The female reproductive part of a flower Pistil Ovary A flower structure that encloses and protects ovules and seeds as they develop

7. Fruit The ripened ovary and other structures that enclose one or more seeds An angiosperm with one seed leaf Monocot Dicot An angiosperm that has two seed leaves The growth response of a plant towards or away from a stimulus Tropism Hormone A chemical in an organism that produces a specific effect such as growth and development

8. Auxin A plant hormone that speeds up the rate of growth in plant cells A plant’s response to the seasonal changes in length of day and night Photoperiodism Short Day Plant A plant that flowers when the nights are longer than the plant’s critical night length A plant that flowers when the nights are shorter than the plant’s critical night length Long Day Plant Critical Night Length The number of hours of darkness that determines whether or not a plant will flower

9. Day Neutral Plant A plant with flowering cycle that is not sensitive to periods of light and dark A period when an organism’s growth or activity stops Dormancy Annual A flowering plant that completes its life cycle in one growing season A flowering plant that completes its life cycle in two years Biennial Perennial A flowering plant that lives for more than two years