Term
| Phytochromes are ____ _____ ______ with control ______ and _______. They come in 2 forms ____ and _____. |
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Definition
| Red Light Receptors, germination, flowering, Pr and Pfr |
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Term
| Blue light receptors initiate __________. |
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Definition
| phototropism (response to and growth towards light) |
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Term
| auxin, its affect on stems, roots |
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Definition
| plant growth hormone, stimulates growth in stems, inhibits growth in roots |
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Term
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Definition
| may be responsible for gravity detection by concentrating auxin on lower sides of tissues in roots or stems. |
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Term
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Definition
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Term
| thigmatropism and 2 examples |
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Definition
| growth response to touch, ivy tendrils, closing of venus fly trap |
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Term
| in___________ response, leaves close due to touch. how does this work? |
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Definition
thigmatropism
leaves transmit electrical impulse which adjusts the turgor pressor in opening/closing mechanism of the leaf |
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Term
| hormones can _______ or _______ depending on the receiving cell |
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Definition
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Term
| __________ can cause cell elongatioin through the ________ ________ ________. |
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Definition
| auxins, acid growth response |
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Term
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Definition
auxin causes cells to pump H+ from cytoplasm into cell wall
2 this lowers pH activating enzymes with break bonds between cell wall fibers
3 cell expands via turgor pressure |
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Term
| synthetic auxins are used as ______ on eudicots. Example. |
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Definition
| herbicides, agent orange. |
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Term
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Definition
| stimulate cell div/elongation, breaks seed dormancy (speeds germination) |
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Term
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Definition
with auxins stimulate cell div
delay death (florists) |
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Term
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Definition
| only plans hormone that is a gas, promotes ripening (opposite of cytokinins!) |
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Term
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Definition
| promotes abscission in terminal buds |
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Term
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Definition
| used in defense, sealing off wounded tissue |
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Term
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Definition
| function similar to auxin and gibberellen |
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