Tyrone is explaining the main parts of animal cells to his lab partner who was absent on the day that this topic was covered in class. He begins by talking about the cell membrane which he tells his partner to think about like the ______ of the cell.

Responses:

a) skin

b) brain

c) reticulum

d) nucleus

a) skin

a) skin

The correct answer is a) skin.

The cell membrane can be thought of as the skin of the cell. It is a thin, flexible layer that surrounds the entire cell and acts as a protective barrier. It controls the movement of substances into and out of the cell, much like our skin regulates what enters and exits our bodies.

To find the correct answer, one could think about the characteristics and functions of the cell membrane and then match them to the given options. In this case, since the cell membrane acts as a protective barrier and controls substance movement, the most appropriate comparison is the skin.