QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
"What is one main difference between the cell wall and the cell membrane?
A. The cell wall is more fragile than the cell membrane.
B. Cell walls are only found surrounding animal cells.
C. The cell wall is more rigid than the cell membrane.
D. Cell membranes are only found surrounding plant cells."
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Answer
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Step 1:I'll solve this biology problem step by step:
Step 2:: Understand the Cell Wall and Cell Membrane
The cell wall and cell membrane are both important structural components of cells, but they have distinct characteristics. To determine their main difference, we need to compare their properties and locations.
Step 3:: Analyze the Cell Wall
- The cell wall is a rigid, tough outer layer - Found in plant cells, fungi, and some bacteria - Provides structural support and protection - Composed of materials like cellulose (in plants) - Maintains cell shape and prevents cell from bursting under pressure
Step 4:: Analyze the Cell Membrane
- The cell membrane is a flexible, fluid-like barrier - Found in ALL living cells (both plant and animal) - Made of a phospholipid bilayer - Controls what enters and exits the cell - More fluid and less rigid compared to the cell wall
Step 5:: Identify the Key Difference
The primary difference is the rigidity of the structure. The cell wall is much more rigid and provides more structural support compared to the cell membrane.
Step 6:: Evaluate the Answer Choices
A. Incorrect - The cell wall is NOT more fragile B. Incorrect - Cell walls are NOT only in animal cells C. CORRECT - The cell wall is more rigid than the cell membrane D. Incorrect - Cell membranes are in ALL cells, not just plant cells
Final Answer
The cell wall is more rigid than the cell membrane.
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