plant review

plant review - Vascular Plant Adaptations(Eudicot Primary...

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Vascular Plant Adaptations (Eudicot) Root System: water and minerals enter through this. Lies in the soil where light does not hit it. No photosynthesis. Primary site of photo- synthesis. Produces E- rich organic molecules and releasing O2 gas. (see leaf page) Leaf Hold leaves; connections for transport of materials between roots and leaves; bear buds (embryonic shoots.) stem Where leaves attach to stems Stem region between successive nodes Root system: anchors the plant in place; provides nutrition. Extreme branching of plant roots and their high surface area-to-volume ratio allow them to absorb water and mineral nutrients from the soil. Lateral bud Where leaf meets stem; if it becomes active, it develops into a new branch (extension of shoot system.)
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Leaf Structure Petiole Blade Thin, flat structure attached to the stem. During the day, the blade is perpendicular to the rays of the sun. this maximizes the amount of light available for photosynthesis. Some leaves track the sun; moving constantly so they always face it. A stalk where the stem is attached to the blade. Helps the leaf face the sun and stuff. Regulates the opening of the stomata according to the humidity. Water Food
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Plant Cells Plant cells contain chloroplasts, vacuoles, and cell walls. Cell walls Plant cell walls form as the final step in cell division. Cell plate middle lamella primary wall secondary wall More complex: 2 daughter cells are separated by a cell plate. The daughter cells deposit a glue-like substance which constitutes the middle lamella. The daughter cells secrete cellulose and other polysaccharides to form a primary wall. This continues until the cell expands to its final size. Once cell expansion stops, a plant cell may deposit one of more
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plant review - Vascular Plant Adaptations(Eudicot Primary...

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