Turgor Pressure, Tropisms, and Homeostasis

What type of tropism is response to touch? 

• Gravitropism
• Phototropism
• Thigmotropism
• Hydrotropism

This picture would represent which type of tropism?

• Phototropism
• Geotropism
• Hydrotropism
• Thigmotropism

Changes in an organism's environment that cause a response

• Tropism
• Hormone
• Stimuli
• Response

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When the plant grows toward the stimuli

• Positive
• Negative

When the plant grows away from the stimuli

• Positive 
• Negative

Tags

NGSS.MS-LS1-5

What type of tropism response to water? 

• Hydrotropism
• Gravitropism
• Thigmotropism
• Phototropism

Tags

NGSS.MS-LS2-1

The shoot of a plant growing up. 

• Positive Gravitropism 
• Negative Gravitropism 
• Thigmotropism
• Hydrotropism

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.

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

What must happen for a seed to emerge from the soil as a seedling?

• The soil must erode and expose the seed to sunlight

• An animal searching for food must disrupt the soil

• The seed must exert a force to push a shoot up through the soil

• Another plant must die to make room for the new plant