Plant Tropism Lesson

What type of tropism response to light?

• Geotropism

• Thigmotropism

• Phototropism

• Hydrotropism

What type of tropism response to gravity?

• Hydrotropism

• Phototropism

• Thigmotropism (nastic)

• Gravitropism (geo)

A sunflower turns toward the sun, what type of tropism would this be?

• Hydrotropism

• Phototropism

• Thigmotropism

• Geotropism

What type of tropism response to touch?

• Geotropism

• Phototropism

• Thigmotropism

• Hydrotropism

Which of the following would be the appropriate stimulus and response for geotropism?

• Stimulus= Touch; Response= Close leaves

• Stimulus= Gravity; Response= roots grow down, stem grows up

• Stimulus= gravity; Response= grows toward the light

• Stimulus= Light; Response= roots grow toward water

Which of the following is an example of the effects of geotropism?

• Monarch butterflies migrate from Canada to Mexico each year.

• A hippopotamus submerges itself in water until the Sun goes down.

• A wilted flower returns to an upright position after being watered.

• A potted plant falls on its side, but it roots still grow downward.

A seedling grows shoot up and roots down. This shoots growing up is an example of

• Geotropism

• Hydrotropism

• Phototropism

• Thigmotropism

A vine plant brushes against a fence and wraps itself around the fence. To what stimulus is the plant responding?

• Phototropism

• Hydrotropism

• Thigmotropism

• Geotropism

Plants respond to their environments. Such responses are known as tropisms. Which of the following is not an example of a tropism?

• Plant coiling around an object that it touches
• Plant losing its leaves when the temperature drops
• Plant closing its leaves when touched
• Plant turning as the sun moves from east to west.

A plant is near a well. Its roots are moving towards the well. What tropism is this plant responding to?

• Geotropism

• Hydrotropism

• Phototropism

• Thigmotropism

Tags

NGSS.MS-LS1-5