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26 Cards in this Set
- Front
- Back
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what is contained in plants |
roots, stems, and leaves |
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root system |
anchors the plant, absorbs water and nutrients, stores food |
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root hairs
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increases absorption and the surface area of the root |
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stems |
support the leaves and flowers |
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node |
where leaves join the stem |
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internode |
distance between nodes |
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parenchyma |
most abundant cell type, do all metabolic functions (photosythesis etc) |
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collenchyma |
flexible support, thick cell walls |
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sclerenchyma |
thick cell wall and are dead at maturity |
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dermal tissue |
forms a protective covering, protects against water loss and other organism |
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vascular tissue |
transport tissue for water and sugars |
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ground tissue |
support tissue |
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cuticle |
waxy layer on the surface of leaves, prevents water loss |
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epidermis |
protects the plants |
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upper epidermis |
produces cuticle |
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lower epidermis |
contains stomata |
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mesophyll layer |
contains the chloroplast and are the layers for photosythesis |
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vascular bundle |
contains the vascular tissue for water and glucose transport |
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stomata |
location of gas exchange and water diffusion made of guard cells |
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chloroplast |
organelle where photosynthesis occurs |
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when does the stomata open |
when potassium and water move into guard cells |
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when does the stomata close |
potassium and water exit the guard cell |
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when does the stomata usually close or close |
they open during the day and close at night to prevent water loss |
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what triggers the stomata opening at dawn |
light striking the protein receptors i nthe guard cells |
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transpiration |
evaporation of water through the leaves |
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adaptations that prevent water loss |
thick cuticle, thin needle like leaves, leaf hairs, stomata location, stomata size |
