Term
| What links signal reception to response? |
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Definition
| Signal transduction pathways |
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Term
| What do plant hormones do? |
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Definition
| Help coordinate grwoth, development, and respnses to stimuli |
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Term
| What is critical for plant success? |
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Definition
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Term
| What do plants respond to attacks from?(2 things) |
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Definition
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Term
| Do plants respond to other stimuli besides light? |
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Definition
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Term
| What are the three steps in the Signal transduction pathway? |
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Definition
| Reception, Transduction, Response |
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Term
| What happens in the transduction pathway? |
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Definition
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Term
| How is response mediated by? |
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Definition
Transcriptional regulation
Post-translational modification |
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Term
| What happens in transcriptional regulation? |
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Definition
| transcription factors control transcription (Expression) of genes |
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Term
| What happens in Post-translational modification? |
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Definition
| It involves activation of existing proteins in the signal response |
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Term
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Definition
| chemical signals that coordinate different parts of an organism |
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Term
| what are often caused by hormones? |
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Definition
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Term
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Definition
| How a plant determines which way to grow, light/gravity are examples |
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Term
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Definition
| A plant horomone that aids in cell Elongation |
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Term
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Definition
| stimulate cell division and differentiation |
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Term
| What is Apical dominance? |
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Definition
| The terminal bud's ability to suppress development of axillary buds |
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Term
| What happens when the terminal bud is removed? |
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Definition
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Term
| What are Gibberellins known for? (2 things) |
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Definition
| Stem elongation , Fruit growth and germination |
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Term
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Definition
| after water is imbibed, realease of gibberellins from the embryo signals seeds to germinate |
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Term
| What do Brassinosteroids do? |
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Definition
| induce cellelongation and division in plants |
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Term
| What are the two effects of Absicisic Acid(ABA)? |
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Definition
| Seed dormancy or Drought tolerance |
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Term
| What happens in seed dormancy? |
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Definition
| High levels of ABA inhibit seed germination |
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Term
| What happens in Drought tolerance? |
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Definition
| ABA accumulares in leaves during drought and causese stomata closer |
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Term
| What is ethylene, and what is its importance to plants? |
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Definition
| It is a gas that plants produce in response to stresses. It also is produced during fruit ripenind and programmed cell death |
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Term
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Definition
| loss of a cells division and grown |
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Term
| What is photomorphogenesis? |
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Definition
| The effects of light on a plants morphology, as well as direction, intensity and wavelength( color) |
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Term
| What does an action spectrum graph depict? |
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Definition
| the relative response of a process to different wavelenths of light |
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Term
| What do blue-light photoreceptors control? |
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Definition
hypocotyl elongation
stomatal opening
phototropism |
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Term
| What are phytochromes known for? (what kind of light and three things) |
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Definition
Photoreceptors of mostly redlight
Seed germination
Shade Avoidance
Time of day and seasons |
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Term
| What does seed germination with phytochromes include? |
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Definition
| It allows the plant to germinate when light and other conditions are near optimal and the prevents the death of a shading tree or plowing of field |
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Term
| Why is shade avoidance important? |
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Definition
| So plants can sense quality of light |
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Term
| What are critical to the life cycle of most plants? |
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Definition
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Term
| WHat do plants use to detect the time of the year? |
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Definition
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Term
| What will day lenght effect? (three things) |
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Definition
timing of seed germination
bud formation
flowering |
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Term
| What is a mechanical stimuli some plants have? |
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Definition
| Thigmotropism: growth in response to touch |
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Term
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Definition
| Rapid leaf movements in response to mechanical stimulation |
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Term
| Environmental stresses on plants have a potentially adverse effect on a three things |
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Definition
The plants survival, growth
and reproduction |
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Term
| What is the difference from Abiotic versus Biotic? |
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Definition
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Term
| What are three things plants are subject to besides being attacked by animals? |
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Definition
| viruses, bacteria, and fungi |
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Term
| What are some defense plant have agains herbivores? |
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Definition
| They " recruit" predatory animals that help defend against specific behaviors |
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Term
| What is a plants defense against pathogens? (two lines) |
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Definition
The first line is physical barriers
The second line is it attacks pathogen and prevents it from spreading |
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