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22 Cards in this Set
- Front
- Back
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define pholem
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carries organic compounds in any direction
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what is the purpose of vascular tissue
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transports water and disolved substances
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define xylem
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carries water to roots > stems > leaves
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define botany
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the study of plants
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define cultivars
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selected by people, they have one distinguishing characteristic that sets them apart from other members of their species
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define agriculture
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growing plants for food and human use
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define woody tissue
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several layers of xylem
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define fruit
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part of flowering plant that usually contains the seeds
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describe cereal
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comes from grain and grasses, accounts for 50% of cultivated foods AND 50% of calories eaten each day
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name the 5 food crops
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cereal, root crops, begtables & fruits & nuts, legumes, spices & herbs
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describe root crops
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from roots or undergrounds stems
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define legumes
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members of the pea family, protein rich seeds in pods
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define vegtable
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foods derived of leaves, stems, seeds, and roots of soft plants
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name 3 plant adaptions to land
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plants could dry out through evaporation, reproducing by spores and seeds instead of sperm, and transporting water and disolved substances
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describe herbs
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come from leaves and can be grown at home
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define spices
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comes from everywhere in the plant except the leaf and is tropical
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where did life first originate?
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oceans
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define cuticle
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waxy covering on surfaces that keeps out carbon dioxide
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define endosperm
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provides nutrishment for embryo
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how long ago did life appear on land?
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430 billion
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define seed
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embryo surrounded by protective coat, may contain endosperm
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define stomata
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small opening to allow exchange of carbon dioxide and oxygen
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