Water and Ions

question 98

Multiple Choice

Water and ions

• A) can enter root hairs only by crossing the plasma membrane.
• B) can travel though the root to the xylem entirely through the apoplast.
• C) must cross a plasma membrane to reach the xylem.
• D) cross the Casparian strips.
• E) would be transported to the xylem in dead roots.

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Definitions:

Standard Deviation

A statistic that quantifies the dispersion or variability of a dataset, measuring the average distance between each data point and the mean.

Z-score

A quantitative measure that demonstrates the correlation of a specific value to the mean of a dataset, identifying its separation from the mean by counting the standard deviations.

Standard Normal Random Variable

A type of random variable that has a mean of 0 and a standard deviation of 1, following the standard normal distribution.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean of the data set.