QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which of the following statements best describes the function of a cell membrane?
A. The cell membrane has many functions, but its primary action is to regulate the movement of materials into and out of the cell.
B. The cell membrane has numerous functions, but its primary role is to keep organelles contained within the cell.
C. The cell membrane has many functions, but its primary action is to act as a barrier to keep foreign substances from moving into the cell.
D. The cell membrane's primary function is to move waste out of the cell.
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Answer
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Step 2: Understand the Cell Membrane
The cell membrane (also called plasma membrane) is a complex biological structure that serves multiple important functions. To determine its primary function, we need to analyze the key characteristics of the membrane.
Final Answer
The cell membrane's primary action is to regulate the movement of materials into and out of the cell.
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