| A | B |
|---|
| A plant organ that absorbs water and minerals from the soil | roots |
| Containes tissues of tubelike, elongated cells through which water and food are transported | vascular tissues |
| Provides structural support for upright growth | stem |
| Structure that contains an embryo along with a food supply and is covered by a protective coat | seed |
| Broad, flat organ of a plant that traps light energy for photosynthesis | leaf |
| Openings in the epidermis of a leaf that allows exchange of gases | stomata |
| The primary source of water an nturients fro a plant is the soil | true |
| leaf of a fern | frond |
| Organism at an early stage of develpment | embryo |
| food-storage organ of a plant embryo | cotyledon |
| vascular plant that produces seeds that are not protected by a fruit | gymnosperm |
| structure that includes sperm cells, nutrients, and a protective outer covering | pollen grain |
| phloem | transports sugars from leaves to all parts of the plant |
| xylem | transports water and dissolved minerals upward from the roots to the leaves |
| Horsetails | sphenophytes |
| Only one living species today | Ginkgophyta |
| plant with seeds containing two-seed leaves | dicotyledon |
| plants that live for several years | perennial |
| produces flowers and develops seeds in a fruit | angiosperm |
| made up of phloem tissue and a tough, corky layer that protects the phloem | bark |
| growth tissue that remains just behind the root tip | apical meristem |
| growth tissue between xylem and phloem that produces additional xylem and phloem cells | cambium |
| cell that surrounds and controls the opening of the stomata | guard cell |
| photosynthetic tissue of a leaf | mesophyll |
| dicotyledons have | netted veins |
| The evaporation of water from the stomata of the leaves is called | transpiration |
| tiny single-celled extension of an epidermal cell that increases the surface area of the root and absorbs water and minerals | root hair |
| In angiosperm, food-storage tissue that supports development of the embryo | endosperm |
| Part of the flower in which ovules containing eggs are formed | ovary |
| Plants response to an external stimulus from a particular direction | tropism |
| Leaflike, usually colorful, structures arranged in a circle around the tip of a flow stem are | petals |
| Beginning of the development of the seed into a new plant is called | germination |
| Female structure of the flower | pistil |
| Structure that contains the seed of the anthophyte | fruit |
| Tip of the stamen, produces pollen | anther |
| Control by temperature, mositure, or other environmental factors, rather than by day length | day-neutral plant |
| In time of drought, the function of abscisic acid in a plant would be to | close the stomata |
| The anther and filament for the | stamen |
| The pistil contains | stigma, style, and ovary |
| A plant that produces too little of the gibberellins might | not form flowers |
