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17 Cards in this Set
- Front
- Back
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Roots function
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absorb water and nutrients and anchor the plant
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4 types of roots
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tap root
pneumatophores (knee root) Fibrous roots prop roots |
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Tap root
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one predominant root
carrot |
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Pneumatophores
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called knees
come up from the water and function in gas exchange |
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Fibrous roots
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many roots the same diameter
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prop roots
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above ground roots
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Stems function
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to support and carry nutrients, water, sugar
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Cells that transport
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xylem & phloem
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xylem
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carry nutrients and H2O from roots up
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phloem
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take sugar from the leaves down the plant
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Herbaceous Stem
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not woody, flexible. can photosynthesize
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Woody stems
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not flexible
dont photosynthesize |
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Plant hormones
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chemical produced in one part of the plant and transported to another where a change occurs
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types of hormones
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auxins, gibberellins, ethylene gas
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Auxins
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promotes cell elongation
causes cells to undergo mitosis |
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gibberellins
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growth hormone
increase seed germination & bud development |
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Ethylene gas
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ripens the fruit
causes the cell walls to weaken and become soft breaks down complex carbs to simple sugars |
