In the Cell Membrane, the Hydrophilic Part of the Phospholipid

question 30

Multiple Choice

In the cell membrane, the hydrophilic part of the phospholipid molecule:

• A)faces the exterior of the cell.
• B)faces the interior of the cell.
• C)is in the center of the phospholipid bilayer.
• D)both A and B.

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Definitions:

Contour Lines

Lines on a map that connect points of equal elevation, representing the shape and elevation of the terrain.

Topographic Map

A detailed map that represents the three-dimensional features of a place, such as mountains and valleys, using contour lines to denote elevation changes.

Contours

Lines on a map that connect points of equal elevation, used to represent the shape and elevation of terrain.

Shaded-Relief Map

A map of an area whose relief is made to appear three-dimensional by simulating the shading on mountains, valleys, and other features.