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Using the graph in figure 30.13, calculate the pollen tube growth rate, being sure to show your work. Compare your rate with the rate in the table in figure 30.13 and propose an explanation for any differences.
To calculate: The pollen tube growth rate using the graph in the given question.
Introduction: Plants are multicellular, predominantly photosynthetic eukaryotes. They belong to the kingdom Plantae. Seed plantsare defined as plants that bear seeds. The two major types of seed plants are angiosperms and gymnosperms.
Explanation of Solution
The pollen tube is a tube through which the sperm from the pollen reaches the egg cells and fertilizes the plant to form seeds. The pollen grains are carried to the female gametophyte by a pollinator or wind. The growth rate of the pollen tube is calculated as (640 µm -80 µm)/(8 hr -1 hr) = 80 µm/hr using the graph in the given question.
To compare: The rate of pollen tube growth calculated by an individual with the rate in the table given in the question and propose an explanation for any differences.
Explanation of Solution
The growth rate of the pollen tube calculated by an individual with the rate in the table given in the question matches the value in the data table. The difference could be the result of reading the graph incorrectly or by rounding offduring calculation.
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Chapter 30 Solutions
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