Unit 3 Review

A tropism is...

• a change in the environment

• plant movement in response to a stimulus

• something that causes a response

• when photosynthesis takes place

What is the stimulus in this example?

• Internal

• Light

• Touch

• Temperature

Roots of a tree growing towards the water line of a house.

• Geotropism

• Phototropism

• Thigmotropism

• Hydrotropism

Venus Flytrap flower reacts to a bug.

• Thermotropism

• Negative Geotropism

• Thigmotropism

• Hydrotropism

Sunflowers turning towards the sun.

• Hydrotropism

• Phototropism

• Thigmotropism

• Geotropism

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

The diffusion of water vapor out of a leaf

• transportation

• transformation

• transpiration

• translocation

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

What does the Xylem transport?

• Water and Minerals

• Glucose

• Blood

• Chlorophyll

What does the Phloem transport?

• Water and Minerals

• Glucose

• Blood

• Chlorophyll