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-makes up most of the body of a plant
-found between dermal and vascular tissue
-divided in three cell types: collenchyma, parenchuma, and sclerenchuma |
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-live cells that provide flexible and mechanical support
-often found in stems and leaves |
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most prominent
- found in leaves as mesophyll cells, allow CO2 and O2 to diffuse through intercellular spaces
- play a role in storage and secretion for plants |
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| protect seeds and support the plant |
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| primary components: xylem and phloem |
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-strengthens the plant
- passageway for transport of water and minerals from soil to photosynthesizing cells
-most are dead and act as cell walls that contain minerals and water
-vessel v.s tracheid cells (vessel moves water more efficiently) |
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-movement of sugars from one place to another
-sieve tube elements are alive
-carries away the products of photosynthesis |
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protective outer coating for plants. The epidermis; keep infectious agents out and water and nutrients in.
-guard cells |
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| control opening and closing of gaps called stomata (pores that control gas exchange; oxygen exits, CO2 comes in) |
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-hairs create a larger surface area for absorption
-absorb water and minerals |
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| two types of angiosperm? (flowering plants) |
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| branches; roots start as one thick root and then divide into smaller branches called lateral roots to hold plant in place |
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| provide plants with a very strong anchor in the ground without going too deep. |
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| protective structure that keeps roots from being damaged during push through soil |
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| section of root where cells are actively dividing |
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| next section up along the root, where cells absorb H2O and increase in length to make the plant taller |
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| section of root past the zone of elongation where the cells differentiate to their finalized form (pholem, xylem, etc.) |
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| waxy cuticle of the epidermis functions to decrease the transpiration rate |
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| where most of the photosynthesis of the leaf occurs, lots of chloroplasts |
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deeper than palisade mesophyll
- cells provide CO2 to the cells performing photosynthesis
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| surrounds vascular tissue to make use of CO2 more efficient and allow the stomata to remain closed during the hot day time hours. |
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