Tropism

What is tropism?

• A plant's response to a stimulus

• A plant reproducing

• An animal's response to a stimulus

• A prokaryote's response to a stimulus

Which of these are types of tropism? Select all that apply:

• Hydrotropism

• Synthetropism

• Electrotropism

• Gravitropism

What makes a tropism positive or negative?

• Positive = movement towards stimulus, Negative = movement away from stimulus

• Negative = movement towards stimulus, Positive = movement away from stimulus

• Who cares? It doesn't matter whether it is positive or negative

• Positive = when a plant is happy, Negative = when a plant is sad

Stem has

• negative phototropism

• positive gravitropism

• Positive Phototropism

• no answer

what type of tropism is occurring here?

• phototropism

• thigmotropism

• gravitropism

• tropictropism

Which type of tropism?

• hydrotropism

• thigmotropism

• phototropism

• geotropism

The diagram shows a plant growing while lying on its side. How is the plant reacting positively and negatively to gravity?

• the root are reacting negatively by growing downward while the stem and leaves are reacting positively by growing upward

• the root are reacting positively by growing downward while the stem and leaves are reacting negatively by growing upward

• only the roots are reacting by growing downward

• only the leaves and stem are reacting by growing upward

Tags

NGSS.MS-LS1-5

What is gravitropism/geotropism?

• The movement of a plant in response to gravity

• The movement of a plant in response to earthquakes

• The movement of bacteria in response to changes in temperature

• The movement of plants towards water

Tags

NGSS.MS-LS1-5

What is hydrotropism?

• The movement of plants towards water

• The movement of plants away from water

• The rate of growth of a plant in response to temperature changes in water

• A plant's response to gravity and touch

What is thigmotropism?

• The movement of plants in response to touch

• The movement of plants toward the sun

• A prokaryote's movement inside the bloodstream

• The movement of plants in response to gravity