The Plasma Membrane

question 110

Multiple Choice

The plasma membrane

• A) appears under an electron microscope as a double dark line with a light space between.
• B) is composed primarily of a double layer of phospholipid molecules with proteins interspersed throughout the phospholipids in a mosaic pattern.
• C) separates the intracellular and extracellular fluid.
• D) two of these answers.
• E) all of these answers.

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Definitions:

Sine

A trigonometric function denoting the ratio of the length of the side opposite to a given angle to the length of the hypotenuse in a right-angled triangle.

Pulsating

A periodic variation in magnitude or intensity, often used to describe waveforms or signals.

Peak-to-peak

A measure of the amplitude of a waveform, indicated by the difference between its maximum and minimum values.

RMS

Root Mean Square, a statistical measure of the magnitude of a varying quantity, used especially in electrical engineering to quantify the average voltage or current of alternating current (AC).