A Phospholipid Bilayer with Equal Amounts of Saturated and Unsaturated

question 64

Multiple Choice

A phospholipid bilayer with equal amounts of saturated and unsaturated fatty acids displays a specific permeability to glucose. What effect will increasing the proportion of unsaturated fatty acids in the bilayer have on the membrane's permeability to glucose?

• A) Permeability to glucose will increase.
• B) Permeability to glucose will decrease.
• C) Permeability to glucose will stay the same.
• D) Permeability will decrease initially then increase as the bilayer fills with glucose.

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Definitions:

Place Theory

A theory in psychology and philosophy that suggests physical location and environment play a significant role in how individuals perceive and interact with the world around them.

Frequency Theory

A theory in the field of psychology that suggests the rate at which nerve impulses are fired in the auditory nerve corresponds to the frequency of a sound wave, enabling us to detect its pitch.

Volley Principle

A theory in auditory neuroscience suggesting that groups of neurons can provide a temporal coding for frequencies by firing in rapid succession, allowing the brain to perceive sounds up to about 5000 Hz.

Binaural Cues

Sounds that enable the brain to perceive direction and distance by comparing the input from both ears.