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AP Bio - Plants 2
AP Bio - Plants 2 - Mrs. Welch's class
| Question | Answer |
|---|---|
| the turning or bending of a plant toward or away from an external stimulus | tropism |
| plant grows/bends in response to light | phototropism |
| plant grows/bends in response to gravity | gravitropism |
| plant grows/bends in response to touch | thigmotropism |
| plant grows/bends in response to chemicals | chemotropism |
| plant grows/bends in response to water | hydrotropism |
| plant hormone that regulates cell elongation for tropism responses | auxin |
| tropism where the plant grows toward the stimulus | positive |
| tropism where the plant grows away from the stimulus | negative |
| the effect of day and night length on plant flowering | photoperiodism |
| plant that needs 14-16 hours of light to flower | long day |
| plant that needs 7-8 hours of light to flower | short day |
| plant that flowering is unaffected by day length | day neutral |
| plant hormone that promotes growth; stimulates cell elongation; delays fruit ripening; phototropism | auxin |
| plant hormone that causes stem cell elongation; increases flower size | gibberellin |
| plant hormone that promotes cell division; keeps vegetables fresh | cytokinins |
| plant hormone that induces dormancy; inhibits growth; stress hormone | abscisic acid |
| plant hormone that ripens fruit; gas | ethylene |
| flower with both stamens and pistils | perfect |
| leaf life, green part that protects the flower bud | sepal |
| colorful part of the flower | petals |
| male reproductive part | stamen |
| two parts of the stamen | anther and filament |
| female reproductive part | pistil (carpel) |
| three parts of the pistil | stigma, style, ovary |
| fruit texture if pericarp is soft | fleshy |
| fruit texture if pericarp is papery, leathery, or woody | dry |
| when fruit splits open when ripe | dehiscent |
| fruit made from a single ovary | simple |
| fruit made from multiple individual ovaries | compound |
| fruit made from separate flower in a common receptacle | multiple |
| fruit made from a many ovaries on a single flower on a common receptacle | aggregate |
| Name 3 requirements for germination. | Oxygen (for respiration), temperature (for enzymes), water (for hydration) |
| when a seed assumes water in germination | imbibition |
| when no growth occurs; waiting for favorable conditions | dormancy |
| microspore | pollen |
| megaspore | egg |
| nutritive storage tissue derived from union of sperm with the polar nuclei | endosperm |
| one sperm fertilizes the egg; the other sperm joins with polar nuclei to make a 3n endosperm | double fertilization |
| dominant generation in life cycle of ferns | sporophyte |
| fern leaf | frond |
| pressure in plants that keeps them upright; caused by swelling of the central vacuole | turgor pressure |
Created by:
mrsjwelch
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