Plant Use Chemical And Electrical Signals To Survive Flashcards
Define hormones
A hormone is a low molecular weight organic compound, produced in a small quantity in one area of an organism, and transported to another area where it can trigger a response.
Compare the plant and animal responses.
Plant responses are slower than animals, but they last longer.
Why is plant growth regulator used instead of hormones?
It contains many organic and inorganic substances to produce plant response.
List the importance of chemical signals to the plant.
•faster growth
•tissue repairs
•defense from predators
•reproduction
Why does plant transport hormones?
To communicate between cells, which increases their chance for survival.
Define electric gradient.
Distribution of charges across a semipermeable membrane .
Define chemical gradient?
Concentration of a substance dissolved in a solution on both sides of a membrane.
