It is the first structure to emerge from a dicot seed b. It straightens when exposed to light d. It becomes very long in an etiolated seedling e. It is the region just below the cotyledons 3. The first step in germination of a seed is usually a.
Auxin accumulates on the darker side of the plant.
Auxin inhibits cell elongation on the light side. Flowering in Short Day and Long Day Plants 13. Pfr For Questions 17 - 20, match the hormone with the description. Each choice may be used once, more than once or not all. Stimulates cell division by influencing the synthesis or activation of proteins required for mitosis 18.