Exam 11: Growth

The fruit ripening process releases large quantities of

Statoliths are involved in phototropisms.

The pigment phytochrome has only one role in plant development; that role is involvement in plant photoperiodism.

The flowering of Arabidopsis is a result of turning on a gene called ________ which produces of a protein that moves from the leaves to the buds to initiate flowering.

Phenylacetic acid (PAA) is a/an ________.

Which of the following is synthesized from carotenoid pigments in plastids?

The most important effect of cytokinin is its influence on

Commercial chrysanthemum growers may use a growth retardant to produce short, sturdy plants. It acts by blocking synthesis of ________.

Grass leaves may roll up in dry weather when certain cells lose their turgor.

________ is defined as an irreversible increase in mass due to the division and enlargement of cells.

Auxins promote the growth of the stem by

One cellular process that is affected by auxin is the ________.

Special cells that facilitate the perception of gravity by root caps and coleoptiles are

Which of the following play a major role in water-conservation movements of grasses?