1. which following is not a function of a auxins?
a. promoting apical dominance
b. promoting cell elongation in stems
c. promoting the growth of lateral buds
d. promoting the growth of new roots

2. hormones that stimulate cell elongation and are produced in the rapidily growing region near the tip of the plant's root or stem are called
a. auxins.
b. ethylenes.
c. cytokinins.
d. gibberellins.

3. which hormone produces increases in size, especially in stems and fruits?
a. auxin
b. cytokinin
c. gabberellin
d. ethylene

4. what is the source of ethylene gas in a plant?
a. leaf buds
b. root hairs
c. fruit tissues
d. lateral meristems

5. if the apical meristem of a mature plant is removed, the plant will most likely
a. lose its ability to develop new new roots.
b. show a dramatic and rapid increase in height.
c. develop apical dominance and begin to flower.
d. lose apical dominance and grow lateral branches.