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Cards In This Set
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Physiology
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The study of life processes in an organism
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Nastic movement
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A plant's response to a stimulus such that the direction of the response is preprogrammed and not dependent on the direction of the stimulus
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Pore spaces
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Spaces in the soil that determine how much water and air the soil can hold
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Loam
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A mixture of gravel, sand, silt, clay and organic matter
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Cohesion
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The phenomenon that occurs when individual molecules are so strongly attracted to each other that they tend to stay together, even when exposed to tension
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Translocation
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The process by which organic substances move through the phloem of a plant
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Hormones
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Chemicals that circulate throughout multicellular organisms, regulating cellular processes by interacting with specifically targeted cells
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Phototropism
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A growth response to light
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Gravitroprism
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A growth response to gravity
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Thigmotropism
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A growth response to touch
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Perfect flowers
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Flowers with both stamens and carpels
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Imperfect flowers
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Flowers with either stamens or carpels, but not both
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Pollination
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The transfer of pollen grains from the anther to the carpel in flowering plants
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Double fertilization
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A fertilization process that requires two sperm to fuse with two other cells
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Seed
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An ovule with a protective coating, encasing a mature plant embryo and a nutrient source
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