MYP Biology Topic Tropisms Questionbank

Question

If a plant shoot is kept in a dark room and the hormone auxin is concentrated only on the left side of the shoot, what is the most likely growth response?

A

The shoot will bend toward the right because cells on the right side elongate more

B

The shoot will bend toward the right because cells on the left side elongate more

C

The shoot will bend toward the left because cells on the left side elongate more

D

The shoot will grow straight upward because auxin requires light to stimulate cell elongation

Question

True or False: In a plant shoot exhibiting phototropism, cells on the side of the stem furthest from the light source elongate more than cells on the side facing the light.

The specialized cells in a root that contain dense starch grains used for sensing gravity are known as __________.

Because plants are stationary, they use controlled growth responses to adjust their position __________ to their environment.

In stems, __________ phototropism ensures that leaves are positioned to capture the maximum amount of sunlight for photosynthesis.

MYP Biology Tropisms Questionbank

MYP MYP Biology Topic Tropisms Questionbank