23S BISC208 Week 3 Plant Structure assignment (1)

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University of Delaware *

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208

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Biology

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Jan 9, 2024

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pdf

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3

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23S BISC208 Week 3 - Ex. 4 (Plant Structure) Assignment Instructions: Type your answers directly into this document and change the color/font/bold the text to make your answers stand out . Save your assignment as a PDF and submit it to the appropriate assignment on Canvas, due by 11:59pm, the day after your lab meets. Double check your submission to ensure you uploaded the correct, complete file to the Canvas assignment. You can resubmit the assignment if needed, though the late penalty will apply if you submit after the due date/time. In Exercise 4A and 4B, you split the stem of a tomato plant and a white carnation. For the tomato, you placed the split stem into two stains, and for the carnation you placed it into four food dyes. 1. Insert a picture of the observed tomato stem cross-section and include a label for the structure that was stained. Write a figure caption (description) below the picture that starts with Figure 1. (1 pt) Figure 1. Stem of a tomato plant with two stains on the polar pores Polar pores
2. Insert a picture of your colorful carnation. Write a figure caption (description) below the picture that starts with Figure 2. (0.5 pt) Figure 2. Carnation flower with the stem split and placed in 4 dyes. 3. Describe the color patterns that you observed: (1 pt) o For the tomato, how were the red and blue stains distributed? The red and blue stains were distributed through transpiration and microscopic polar pores. o For the carnation, what was the result (color distribution) of the four food dyes traveling up to the petals? The color of the petals are correlated to the directly connected stem’s. The carnation’s pedals were dyed 4 different colors in 4 divided areas. The top right was red, the top left was green, the bottom left was blue, and the bottom right was yellow. These specific areas of the pedals had that specific color dye with the stem connected below. o How did the color distribution in the petals relate to the distribution of the split stem pieces in the tubes of food dye? Each part of the stem was placed in different food dye, the petals changed color depending on the food dye the with stem it’s connected with below.
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