Plant Hormones

Created by CL911 

Upgrade to
remove ads

Plants React to

Light, Gravity, Changes is photoperiod, Touch

Phototropism

Plants tendency to move towards light

Gravitropism

Plants tendency to grown towards the ground

Thigmotropism

Plants tendency to react to touch

Hormones and Phytochrome are involved in...

receiving information and causing changes in plants

Auxin

responsible for phototropism in stems, gravitropism in roots, apical dominance

Apical Dominance

Concentration of growth at the tip of a plant shoot, where a terminal bud partially inhibits axillary bud growth.

IAA

Auxin abbreviation

Giberellins

responsible for stem elongation or growth, wakes up seeds that are dormant

GA

Giberellins abbreviation

Cytokinin

promotes cell division in plants, causes growth in plants, prevents senescence in plants

Senescence

Old age in plants

Abiscisic Acid

stress hormone, inhibitory, initiates seed and bud dormancy, closes stomates

Ethylene

only hormone that is a gas, initiates leaf, fruit and flower drop, ripen fruit

Abscission

Leaf fruit or flower drop

Phytochrome

the flowering "hormone" that is actually a pigment

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set