Lab 7A Review

What is the effect of auxin?

• cell division, release of axillary buds

• apical dominance, cell elongation, stimulation of root and flower development

•  fruit ripening in some species and abscission of leaves, flowers, or fruits

• stomatal closure, induction of storage proteins in seeds, dormancy in seeds

What is the effect of cytokinin?

• cell division, release of axillary buds

• apical dominance, cell elongation, stimulation of root and flower development

•  fruit ripening in some species and abscission of leaves, flowers, or fruits

• stomatal closure, induction of storage proteins in seeds, dormancy in seeds

What is the effect of ethylene?

• cell division, release of axillary buds

• apical dominance, cell elongation, stimulation of root and flower development

•  fruit ripening in some species and abscission of leaves, flowers, or fruits

• stomatal closure, induction of storage proteins in seeds, dormancy in seeds

What is the effect of abscisic acid?

• cell division, release of axillary buds

• apical dominance, cell elongation, stimulation of root and flower development

•  fruit ripening in some species and abscission of leaves, flowers, or fruits

• stomatal closure, induction of storage proteins in seeds, dormancy in seeds

Higher abscisic acid cause seeds to...

• stay dormant

• start to germinate

Higher gibberellin cause seeds to...

• stay dormant

• start to germinate

Which seeds are treated with abscisic acid?

• A

• B

Production of callus needs auxin to be ______ cytokinin

• equal to

• lower than

• higher than

What happens when the apex is removed from a plant?

• Nothing

• Plant grows longer

• Plant grows bushier

• Plant dies immediately

What happens when gibberellic acid is added to a mutant dwarf plant?

• Nothing

• Height of plant increases

• Plant will grow bushier