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- 1. Multiple Choice
Movement toward a stimulus
hydrotropism
positive tropism
dormancy
stimulus
- 2. Multiple Choice
A period of inactivity before germination
stimulus
tropism
dormancy
photosynthesis
- 3. Multiple Choice
Movement away from a stimulus
geotropism
hydrotropism
stimulus
negative tropism
- 4. Multiple Choice
A plant's response to any stimulus
dormancy
tropism
hibernation
pollination
- 5. Multiple Choice
A plant's response to touch
thigmotropism
geotropism
hydrotropism
dormancy
- 6. Multiple Choice
Water, light, ,earth, and touch are examples of
dormancy
tropisms
stimulus
hibernation
- 7. Multiple Choice
The movement of roots toward the ground or the movement of stems away from the ground
hydrotropism
geotropism
thigmotropism
phototropism
- 8. Multiple Choice
The movement of a plant's roots toward water in the soil
thigmotropism
geotropism
phototropism
hydrotropism
- 9. Multiple Choice
The movements in a plant in response to light
phototropism
geotropism
hydrotropism
thigmotropism
- 10. Multiple Choice
Why does a plant stem grow upward away from the soil?
positive geotropism
positive thigmotropism
negative geotropism
negative hydrotropism
- 11. Multiple Choice
What causes plants to bend toward the sunlight?
positive thigmotropism
positive thigmotropism
negative phototropism
positive phototropism
- 12. Multiple Choice
When a seed germinates, why do roots grow downward toward the ground?
positive thigmotropism
negative hydrotropism
positive geotropism
negative phototropism
- 13. Multiple Choice
Which of the following is an example of a negative tropism?
a plant is leaning toward the window
vines are growing around a fence post
a seed sprouts and the shoot from the seed grows away from the earth
a seed sprout and the shoot from the seed grows toward the sunshine
- 14. Multiple Choice
Vine grow straight along the ground until they find something to grow around like a mailbox. What made the vine stop growing straight and start wrapping around the mailbox?
negative thigmotropism
negative geotropism
positive geotropism
positive thigmotropism
- 15. Multiple Choice
How do trees conserve energy during winter?
they become dormant
they change locations
they grow more
they add leaves
- 16. Multiple Choice
Which letter on the diagram represents the external stimulus?
W
X
Y
Z
- 17. Multiple Choice
Which most likely helps a plant conserve energy when winter conditions occur?
dormancy
geotropism
photosythesis
transpiration
- 18. Multiple Choice
The diagram shows a plant growing near a window. How can the plant's reaction best be described?
as condensation
as transpiration
as dormancy
as tropism
- 19. Multiple Choice
Which change would most likely cause a plant to enter dormancy?
increasing temperature
decreasing temperature
increasing the amount of ight
tipping the plant over onto its side
- 20. Multiple Choice
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
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