Plant Responses Lesson Quiz B Multiple Choice LESSON 2

Name
Date
Lesson Quiz B
Class
LESSON 2
Plant Responses
Multiple Choice
Directions: On the line before each question, write the letter of the correct answer.
1. What must occur for a change in the environment to be considered a stimulus?
A. The change must become permanent.
B. The change must be considered beneficial.
C. The environment must become dangerous.
D. The organism must respond to the change.
2. Which of the following is an example of a chemical stimulus?
A. light
B. touch
C. gravity
D. hormones
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3. Which growth response allows plant tendrils to wrap around an object?
A. gravitropism
B. phototropism
C. thigmotropism
D. hormonetropism
Short Answer
Directions: Respond to each statement on the lines provided.
4. Define photoperiodism.
5. Contrast a positive and a negative tropism.
6. State two examples of plant hormones. Describe the effect of each on plant growth.
7. Evaluate the use of plant hormones to change the way plants develop.
Plant Processes and Reproduction
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