Which of the following statements about plant hormones is false?
A) They are organic compounds that act as a highly specific chemical signal.
B) They are effective in extremely small amounts.
C) They elicit many different responses.
D) They stimulate a response at one concentration and inhibit that same response at a different concentration.
E) They can be categorized into seven major classes.

Question

Quizplus · Accepted Answer

There are five major classes of plant hormones: auxins, cytokinins, gibberellins, ethylene, and abscisic acid. While there are other compounds that can act as hormones, they are not typically categorized into seven major classes.

Which of the Following Statements About Plant Hormones Is False