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Chapter 3 Vocab
Chapter 3 Vocab Words
Question | Answer |
---|---|
Cuticle | Waxy, protective layer that covers the stems, leaves, and flowers of many plants and helps prevent water loss. |
Cellulose | Chemical compound made out of sugar; forms tangled fibers in the cell walls of many plants and provides structures and support. |
Vascular Plants | Plant with tubelike structures that move minerals, water, and other substances throughout the plant. |
Nonvascular Plants | Plant that absorbs water and other substances directly through its cell walls instead of through tubelike structures. |
Rhizoids | Threadlike structures that anchor nonvascular plants to the ground. |
Pioneer Species | First organisms to grow in new or disturbed areas; break down rock and build up decaying plant materical so that other plants can grow. |
Stomata | Tiny openings in a plant's epidermis through which carbon dioxide, water vapor, and oxygen enter and exit. |
Guard Cells | Pairs of cells that surround stomata and control and closing. |
Xylem | Vascular tissue that forms hollow vessels that ranspor substances, other than sugar, throughout a plant. |
Phloem | VAscular tissue that forms tubes that transport dissolved sugar throughout a plant. |
Cambium | Vascular Tissue that produces xylem and phloem cells as a plant grows. |
Gymnosperms | Vascular plants that do not flower, generally have needlelike or scalelike leaves, and produce seeds that are not protected by fruit; conifers, cycads, ginkgoes, and gnetophytes |
Angiosperm | Flowering vascular plants that produce fruits containing one or more seeds; monocots and dicots. |
Monocots | Angiosperm with one cotyledon inside its seed flower parts in multiples of three, and vascular tissues in bundles scattered throughout the stem. |
Dicots | Angiosperm with two cotyledons inside its seed, flower parts in multiples of four or five, and vascular bundles in rings. |