How Does the Proportion of Saturation and Unsaturation in Membrane

question 54

Multiple Choice

How does the proportion of saturation and unsaturation in membrane lipids affect the fluidity of the cell membrane?

• A)Membrane fluidity increases with an increase in the percentage of unsaturation.
• B)Membrane fluidity decreases with an increase in the percentage of unsaturation.
• C)Membrane fluidity increases with an increase in the percentage of saturation.
• D)Membranes are most fluid when there is an equal proportion of saturation and unsaturation.
• E)Membrane fluidity depends only on the size of the carbon chains,and not on the proportions of saturation and unsaturation.

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Definitions:

Z-Test

A statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

Degrees of Freedom

The total number of independent pieces of information that went into the estimation of a parameter or the calculation of a statistic.

Chi-Squared Table Value

A value derived from the chi-squared distribution used in statistical tests to determine the significance of observed data.

Test Statistic

A calculated value from sample data used to make decisions about a hypothesis, indicating whether to reject the null hypothesis.