Problem
A. This is defined as an irreversible increase in mass due to the division and enlargement of cells.
B. Name an internal factor that coordinates plant growth and development.
C. List the external environmental factors influencing plant growth and development.
D. Indole butyric acid (IBA) which is often used as a rooting hormone in the nursery industry is what type of hormone?
E. Where are auxins produced?
F. List the effects of auxins
G. Which plant hormone was isolated from a fungus causing "crazy-seedling disease"?
H. Commercial chrysanthemum growers may use a growth retardant to produce short, sturdy plants. This would block the synthesis of which hormone?
I. The most important effect of cytokinin is its influence on which cell functions?
J. What effect does abscisic acid (ABA) have on buds and seeds?
K. Which term describes the suppression of the growth of axillary or lateral buds?
L. The fruit ripening process releases large quantities of which hormone?
M. Tropisms are movements in response to internal or external stimuli?
N. Which structures play a major role in the water-conservation movements of grass leaves?
O. The flowering of plants may be due to a hormone called this.
P. Phytochromes control which growth and development function?