Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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Chapter 37, Problem 2S
How could you detect a plant with a mutation in a gene for an important aquaporin protein?
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A team of researchers investigated the effects of phosphorous availability and light intensity on an angiosperm species. Seeds of the angiosperm were divided into four equal groups. Groups 1 and 2 were exposed to 200 μmol, and Groups 3 and 4 were exposed to 500 μmol. Groups 2 and 4 also received a phosphorous (P) solution. After 20 days, all plants were weighed, and the average dry weight of each group was calculated. The results are in the table below.
Group 1(200 μmol, no P)
Group 2(200 μmol, + P)
Group 3 (500 μmol, no P)
Group 4 (500 μmol + P)
Average Dry weight (g)
0.8
1.1
1.5
6.2
Describe the effects of light and phosphorous on the growth of the plants in this study. Explain how the metabolic processes associated with the plant kingdom likely influenced these results.
A team of researchers investigated the effects of phosphorous availability and light intensity on an angiosperm species. Seeds of the angiosperm were divided into four equal groups. Groups 1 and 2 were exposed to 200 pmol, and Groups 3 and 4 were exposed to 500 umol. Groups 2 and 4 also received a phosphorous (P) solution. After 20 days, all plants were weighed, and the average dry weight of each group was calculated. The results are in the table below. Group 1(200 pmol, Group 2(200 umol, Group 3 (500 umol, Group 4 (500 pmol no P) no P) +P) Average Dry weight (g) Describe the effects of light and phosphorous on the growth of the plants in this study. Explain how the metabolic processes associated with the plant kingdom likely influenced these results. 10.8 1.5 6.2
Did you find examples of all pigment types in your plant sample? If not, suggest a reason.
why the pigment may have been missing.
Which of the pigments migrated the farthest? Why did it move further than the other?
pigments?
Which of the chlorophyll forms is more soluble? How do you know?
Why is it important for plants to have more than one pigment?
Chapter 37 Solutions
Biology with Connect Access Card
Ch. 37 - Which of the following is an active transport...Ch. 37 - The water potential of a plant cell is the a. stun...Ch. 37 - Hydrogen bonding between water molecules results...Ch. 37 - Water movement through cell walls is a....Ch. 37 - Prob. 5UCh. 37 - The formation of an air bubble in the xylem is...Ch. 37 - Prob. 7UCh. 37 - Stomata open when guard cells a. take up...Ch. 37 - Prob. 9UCh. 37 - A plant must expend energy to drive a....
Ch. 37 - Which of the following statements is inaccurate?...Ch. 37 - If you could override the control mechanisms that...Ch. 37 - Prob. 3ACh. 37 - If you were able to remove the aquaporins from...Ch. 37 - Prob. 5ACh. 37 - If you fertilize your houseplant too often, you...Ch. 37 - How could you detect a plant with a mutation in a...Ch. 37 - Prob. 3SCh. 37 - Prob. 4SCh. 37 - A carrot is a biennial plant. In the first year of...
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