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Mrs. V Plants

7th grade plant chapter

QuestionAnswer
cellulose chemical compound made by plants out of sugar
cuticle waxy, protective layer that covers the stems, leaves and flowers of many plants and prevents water loss
vascular plant plant with tubelike structures that move minerals, water and other substances throughout the plant
nonvascular plant plant that absorbs water and other substances directly through its cell walls
rhizoids threadlike structures that anchor nonvascular plants to the ground
stomata tiny openings in a plants epidermis through which carbon dioxide and water vapor gases enter and leave a leaf
guard cell pairs of cells that surround stomata and control their openings and closing
gymnosperms vascular plants that do not flower
angiosperms flowering vascular plants that produce fruit containing one or more seeds
xylem vascular tissue that forms hollow vessels that transport 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
photosynthesis food making process that takes place in the chloroplasts of plant cells
chlorophyll green, light trapping pigment in plant chloroplasts that is important to photosynthesis
respiration series of chemical reactions used to release energy stored in food molecules
auxin plant hormone that causes plant leaves and stems to exhibit positive phototropism
tropism positive or negative plant response to an external stimulus such as touch, light, or gravity
photoperiodism a plant's response to the lengths of daylight and darkness each day
Created by: dlynns1
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