Why Is the Cell Membrane Selectively Permeable?


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What is the cell membrane?

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1. What does selectively permeable mean?

2. Cells don't take up glucose unless there are signals from the body, like insulin, that tell them to do so. Why can't glucose just move into the cells freely?

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About This Quiz & Worksheet

With the questions on this quiz and worksheet, you'll be examined on details about the cell membrane and its components.

Quiz & Worksheet Goals

These assessments aim to quiz you on:

  • The reason glucose can't move seamlessly into cells
  • A part of the cell membrane that allows certain molecules to leave and enter
  • The reason phospholipids form a blockade for the cell membrane

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related cell membrane lesson
  • Knowledge application - use your knowledge to answer questions about key components of the cell membrane
  • Defining key concepts - ensure that you can accurately define main phrases, such as selectively permeable and cell membrane

Additional Learning

If you'd like to read our lesson about the cell membrane, you'll learn even more about selective permeability. This lesson is titled Why Is the Cell Membrane Selectively Permeable? and it will go over concepts like:

  • The function of the cell membrane
  • Features of the cell membrane
  • How selective permeability works
  • Examples of selective permeability