Plants React to
Light, Gravity, Changes is photoperiod, Touch
Plants tendency to move towards light
Plants tendency to grown towards the ground
Plants tendency to react to touch
Hormones and Phytochrome are involved in...
receiving information and causing changes in plants
responsible for phototropism in stems, gravitropism in roots, apical dominance
Concentration of growth at the tip of a plant shoot, where a terminal bud partially inhibits axillary bud growth.
responsible for stem elongation or growth, wakes up seeds that are dormant
promotes cell division in plants, causes growth in plants, prevents senescence in plants
Old age in plants
stress hormone, inhibitory, initiates seed and bud dormancy, closes stomates
only hormone that is a gas, initiates leaf, fruit and flower drop, ripen fruit
Leaf fruit or flower drop
the flowering "hormone" that is actually a pigment