Plant Stimulus & Response

Plants can detect gravity and respond to it. How do the stems respond to gravity?

• The stems grow away from gravity

• The stems grow toward gravity

• The stems do not detect this stimulus

Plants can detect gravity and respond to it. How do the roots respond to gravity?

• The roots grow away from gravity

• The roots grow toward gravity

• The roots do not detect this stimulus

Plants can detect light and respond to it. How do the stems respond to light?

• The stems do not respond to this stimulus

• The stems grow toward light

• The stems grow away from light

Plants can detect light and respond to it. How do the roots respond to light?

• The roots do not respond to this stimulus

• The roots grow toward light

• The roots grow away from light

Vines can detect touch and respond to it. How do their stems respond to touch?

• The stems do not respond to this stimulus

• The stems grow toward touch

• The stems grow away from touch

Vines can detect touch and respond to it. How do their roots respond to touch?

• The roots do not respond to this stimulus

• The roots grow toward touch

• The roots grow away from touch

Phototropism is a plant's response to -

• Light - an external stimulus

• Light - an internal stimulus

• Gravity - an external stimulus

• Gravity - an internal stimulus

Geotropism is a plant's response to -

• Light - an external stimulus

• Light - an internal stimulus

• Gravity - an external stimulus

• Gravity - an internal stimulus

Thigmotropism is a plant's response to -

• Touch - an external stimulus

• Touch - an internal stimulus

• Gravity - an external stimulus

• Gravity - an internal stimulus