Vocabulary
A plant's movement in response to a stimulus is called a…
What is a tropism?
Plants usually grow toward this source
What is light?
Roots grow in this direction
What is downward?
A Venus flytrap reacts when touched by this
What is an insect?
In fall, leaves change color because there is less…
What is sunlight/daylight?
Something in the environment that causes a response
What is a stimulus?
Cells on this side of a plant stem enlarge to cause it to bend
What is the shaded side?
Shoots grow in this direction
What is upward?
Vines wrap around objects for this reason
What is support?
Leaves drop to save water and…
What is energy?
A plant’s growth toward or away from a stimulus
What is a response?
More light helps leaves make more…
What is food (or energy)?
Gravity tropism helps plants find this underground
What is water or nutrients?
This plant has hairs that sense touch
What is a Venus flytrap?
This pigment breaks down in fall, changing leaf color
What is chlorophyll?
The scientific term for a plant’s reaction to gravity
What is gravitropism?
The reason light tropism helps a plant
What is to absorb more sunlight?
What would happen if you planted a seed sideways?
Roots grow down, shoots grow up
Pea plants use these structures to climb
What are tendrils or vines?
In hot weather, plants wilt because they lose this faster than they take it in
What is water vapor?
The organelle that guides plant cells to grow in certain directions
What is a cell structure?
The term for growth toward light
What is phototropism?
Gravity tropism helps anchor this part of the plant
What is the root system?
Roots growing around rocks is an example of this
What is a touch tropism (thigmotropism)?
These changes are not tropisms because the plant does not grow or move
What are temperature responses?