University of Virginia EDHS 4040

Plant Tropisms and Hormones Lab Student Handout
 Student Name:  Date:
Directions: Use the information in the “Plant Tropisms and Hormones Lab” lesson to help you complete
 this handout. Once you have completed this handout, save it to your device, and upload it to the
 appropriate assignment.
 Use the video clips and scenarios from the lesson to help you answer the following questions.
Part 1: Plant Tropisms (5pts each = 40pts)
1. Phototropism is a plant’s response to .
 2. Geotropism is a plant’s response to .
 3. Hydrotropism is a plant’s response to .
 4. Shoots will always grow upward due to  .
 5. Plants will also always grow towards the source of light energy due to
 .
 6. The roots of plants grow down into the ground because of
 .
 7.   causes the roots of plants to grow towards water.
 8. The amount of  is affected by external conditions and regulates plant
 growth.
 Part 2: Lab-based Scenarios (6pts each = 30pts)
9. Make a hypothesis on the direction each plant will grow.
 This study source was downloaded by 100000830919685 from CourseHero.com on 06-27-2022 11:24:48 GMT -05:00
 
 10. What type of tropism is most likely being tested based upon the lab setup and why?
 11. What is your observation of the roots for each plant in the image?
 12. What type of tropism is most likely being tested based upon the lab setup and why?
 13. Under normal conditions, the roots of plants grow downward. This illustrates what type of
 tropism?
 Part 3: Plant Hormones (5pts each = 30pts)
14. are chemical messengers that can deliver signal to various
 locations.
 15. Removing a plant’s stem tip reduces the amount of , a plant hormone
 responsible for aiding the plant in exhibiting positive phototropism.
 16. Plants require the plant hormone  in order to germinate.
 17. works alongside other plant hormones to aid in the development of
 shoots and the abscission of leaves, flowers, and fruits.
 18. The plant hormone  is also especially important to plants in that it is not
 only responsible for helping fruits ripen, but also aids shoots in pushes upward through the soil
 before blooming.
 19. Plants use to help prevent dehydration by leaking this hormone into
 the chloroplast to signal the closing of the stomata.
Student Name:  Date:
Directions: Use the information in the “Plant Tropisms and Hormones Lab” lesson to help you complete
 this handout. Once you have completed this handout, save it to your device, and upload it to the
 appropriate assignment.
 Use the video clips and scenarios from the lesson to help you answer the following questions.
Part 1: Plant Tropisms (5pts each = 40pts)
1. Phototropism is a plant’s response to .
 2. Geotropism is a plant’s response to .
 3. Hydrotropism is a plant’s response to .
 4. Shoots will always grow upward due to  .
 5. Plants will also always grow towards the source of light energy due to
 .
 6. The roots of plants grow down into the ground because of
 .
 7.   causes the roots of plants to grow towards water.
 8. The amount of  is affected by external conditions and regulates plant
 growth.
 Part 2: Lab-based Scenarios (6pts each = 30pts)
9. Make a hypothesis on the direction each plant will grow.
 This study source was downloaded by 100000830919685 from CourseHero.com on 06-27-2022 11:24:48 GMT -05:00
 
 10. What type of tropism is most likely being tested based upon the lab setup and why?
 11. What is your observation of the roots for each plant in the image?
 12. What type of tropism is most likely being tested based upon the lab setup and why?
 13. Under normal conditions, the roots of plants grow downward. This illustrates what type of
 tropism?
 Part 3: Plant Hormones (5pts each = 30pts)
14. are chemical messengers that can deliver signal to various
 locations.
 15. Removing a plant’s stem tip reduces the amount of , a plant hormone
 responsible for aiding the plant in exhibiting positive phototropism.
 16. Plants require the plant hormone  in order to germinate.
 17. works alongside other plant hormones to aid in the development of
 shoots and the abscission of leaves, flowers, and fruits.
 18. The plant hormone  is also especially important to plants in that it is not
 only responsible for helping fruits ripen, but also aids shoots in pushes upward through the soil
 before blooming.
 19. Plants use to help prevent dehydration by leaking this hormone into
 the chloroplast to signal the closing of the stomata.