Responsible for fall foliage color
Auxins and ethylene
Control shedding of leaves
Regulate growth and send chemical messages
Tendency of plants to grow toward a source of light
Pigment that controls photoperiodism and prepares the plant for winter
Response of a plant to the force of gravity (helps roots to grow down)
Where auxins are produced and if removed, allow for lateral bud growth
The time and process of budding and unfolding of blossoms
Decreased plant activity
Response to external stimuli
Reaction to seasonal changes
Response of plants to touch (ex. Venus Flytrap)
Very Very Old
Plant growth still occurs even when plants are...
Increase thickness, promote gravitropism, and help seeds to sprout
Tissues that divide later and become specialized
The study of plants
Stimulate cell elongation near the tip of the root or stem
Detect changes in the environment
Folding of leaves in response to touch due to osmotic pressure
Response of plants to periods of light and darkness (ex. Morning Glories and 4 O'clocks)
Allow for environmental processes
Affect plant growth and fruit development
Source of ethylene gas in a plant
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