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Close the box, tape it, and place it in a sunny window. In about 4 or 5 days open the box and notice how the plant grows in the direction of the light coming from the hole!!! Investigations > Make a list of all possible stimuli that the seedlings could be responding to when they bend towards a hole. > What independent variables are there in your investigation and how will you control them? > How exactly does phototropism work? > Does the intensity of light have any effect on the rate of phototropism? (Please explain why or why not.) Observations and Conclusion:

Close the box, tape it, and place it in a sunny window. In about 4 or 5 days open the box and notice how the plant grows in the direction of the light coming from the hole!!! Investigations > Make a list of all possible stimuli that the seedlings could be responding to when they bend towards a hole. > What independent variables are there in your investigation and how will you control them? > How exactly does phototropism work? > Does the intensity of light have any effect on the rate of phototropism? (Please explain why or why not.) Observations and Conclusion:

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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THE EFFECTS OF PHOTOTROPISM ON A PLANT Materials: a shoebox, extra cardboard, șcissors, tape, Bean plants, small cups full of soil Procedure: 1. Plant four bean seeds in each of the soilcups. Make sure they're evenly spaced, and plant them just a half inch under the soil. 2. Water the cups, and dump out any excess water (be careful not to tip the soil and seeds out). Set aside. 3. Cut a large hole at one end of the shoebox. Hold the box up to the light and be sure to tape up any other spaces where light shines through. 4. Cut two pieces of cardboard in the following sizes: 5. First make both pieces half the width of the shoebox. 6. Then make both pieces the same height of the shoebox. 7. Now divide the box in thirds and tape one cut cardboard piece on the left side of the box at the one-third mark. Next, tape the other cardboard piece on the right side of the box at the two-thirds mark. 8. Documents your observations. The box should look like the box shown below. Place the small potted plant in the shoebox opposite the hole, make sure that it is well watered. (We started a bean in a plastic cup.)
Transcribed Image Text:THE EFFECTS OF PHOTOTROPISM ON A PLANT Materials: a shoebox, extra cardboard, șcissors, tape, Bean plants, small cups full of soil Procedure: 1. Plant four bean seeds in each of the soilcups. Make sure they're evenly spaced, and plant them just a half inch under the soil. 2. Water the cups, and dump out any excess water (be careful not to tip the soil and seeds out). Set aside. 3. Cut a large hole at one end of the shoebox. Hold the box up to the light and be sure to tape up any other spaces where light shines through. 4. Cut two pieces of cardboard in the following sizes: 5. First make both pieces half the width of the shoebox. 6. Then make both pieces the same height of the shoebox. 7. Now divide the box in thirds and tape one cut cardboard piece on the left side of the box at the one-third mark. Next, tape the other cardboard piece on the right side of the box at the two-thirds mark. 8. Documents your observations. The box should look like the box shown below. Place the small potted plant in the shoebox opposite the hole, make sure that it is well watered. (We started a bean in a plastic cup.)
Close the box, tape it, and place it in a sunny window. In about 4 or 5 days open the box and notice how the plant grows in the direction of the light coming from the hole!!! Investigations > Make a list of all possible stimuli that the seedlings could be responding to when they bend towards a hole. What independent variables are there in your investigation and how will you control them? > How exactly does phototropism work? Does the intensity of light have any effect on the rate of phototropism? (Please explain why or why not.) Observations and Conclusion:
Transcribed Image Text:Close the box, tape it, and place it in a sunny window. In about 4 or 5 days open the box and notice how the plant grows in the direction of the light coming from the hole!!! Investigations > Make a list of all possible stimuli that the seedlings could be responding to when they bend towards a hole. What independent variables are there in your investigation and how will you control them? > How exactly does phototropism work? Does the intensity of light have any effect on the rate of phototropism? (Please explain why or why not.) Observations and Conclusion:
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