How Do Plants Respond to the Environment?

The growth of the plant in respose to a stimulus is called ___________.

• germination
• tropism
• pollination

• photosynthesis

_________ is the plant's response to light.

• Geotropism
• Phototropism
• Thigmotropism
• Hydrotropism

_________ is the plant's response to touch.

• Phototropism
• Thigmotropism
• Geotropism
• Hydrotropism

__________ is the plant's response to gravity.

• Phototropism
• Hydrotropism
• Thigmotropism
• Geotropism

____________ is the plant's response to water.

• Thigmotropism
• Geotropism
• Phototropism
• Hydrotropism

The inward fold of the leaves of the mimosa plant is an example of ______________.

• thigmotropism

• phototropism

• geotropism

• hydrotropism

Leaves and stem grow in the direction of water.

• False

• True

Roots grow in the direction of gravity.

• True

• False

Roots grow in the direction of light.

• False
• True

Grapes plant stem tends to grow ________

• on anything it touches

• toward gravity

• away from light

• toward water