vocab

tropic movements - movements of plants in response to environmental stimuli, such as light, chemical stimuli & gravity

phototropism - movement of plants in response to light

• positive phototropism is often exhibited by stem - stem grows towards the light

• negative phototropism is often exhibited by roots - roots grow away from the light

geotropism - growth of plant in response to gravity

• positive geotropism is exhibited by roots - grow downwards

• negative geotropism is exhibited by stem - grow upwards

phytohormones - plant hormones which’re secreted by plants & regulate their physiological processes, including growth, development, reproduction, flowering, & more

• 5 major types: auxins, cytokinins, gibberellins, abscisic acid & ethylene

• can check kognity for definition of each of the phytohormones

apical meristems - adds length & size to the plant

• at each internode is the axillary bud

• this is an inactive meristem tissue which inhibits hormones

• when time to flower or produce the shoot, the inhibitor will be removed, activating the meristem tissue

lateral meristems - secondary xylem growth in ring inside cambium to support plant as it grows in height