Exam 27: Plant Reproduction and Development

Which hormone causes lengthening in plants by stimulating cell division and elongation along the long axis of stems and other organs?

The process during which the diploid set of chromosomes becomes haploid is ____.

How do auxin and cytokinin work in apical dominance?

When the two guard cells surrounding a stoma lose water and collapse against each other, the stoma closes, a response mediated by which hormone?

Each day, a bean plant holds its leaves horizontally during the day but folds them close to its stem at night. This is an example of ____.

Embryonic plants are nourished by nutrients in endosperm and the ____, but not by nutrients in fruits.

Four of the five answers are conditions that may help to break dormancy in seeds. Select the exception.

What hormone that occurs in both plants and animals is responsible for operating stomatal closure in plants and regulating blood vessel diameter in mammals?

Four of the five answers listed below are adaptations to aid in dispersal of fruit. Select the exception.

Four of the five answers listed below are haploid. Select the exception.

What floral part is photosynthetic and leaflike in many flowers?