Question

When a plant grows toward or away from a stimulus, it’s called a tropism.

a. 3 Types:
i. Phototropism- a response to _________ that directs the stem to grow toward the light and roots to grow away from it
ii. Gravitropism- Stems and leaves grow away from the force of __________ while roots grow toward it.
iii. Thigmotropism- growth in response to _______. The side of the stem in contact with the object grows slower than the side not in contact. This causes the vine to twist around the object.

Note: Fill in all the blanks.

Answer 1

Step-by-step explanation:

Phototropism- a response to light stimulus that directs the stem to grow toward the light and roots to grow away from it.

ii. Gravitropism- Stems and leaves grow away from the force of gravity while roots grow toward it.

iii.Thigmotropism - growth in response to touch stimulus. The side of the stem in contact with the object grows slower than the side not in contact. This causes the vine to twist around the object.