A student argues that the cell membrane is an example of an organelle in prokaryotic cells. What is one problem with this argument? O A. The cell membrane is not an organelle because it has no specific function. O B. The cell membrane is not an organelle because it is not found in all prokaryotic cells. O C. The cell membrane is not an organelle because it surrounds the cell and is not located within the cell. O D. The cell membrane is not an organelle because it does not transport materials across its membrane.

Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
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Chapter2: Cell Physiology
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**Cell Membrane and Prokaryotic Cells: Understanding the Basics**

*Question:* A student argues that the cell membrane is an example of an organelle in prokaryotic cells. What is one problem with this argument?

**Options:**
- **A.** The cell membrane is not an organelle because it has no specific function.
- **B.** The cell membrane is not an organelle because it is not found in all prokaryotic cells.
- **C.** The cell membrane is not an organelle because it surrounds the cell and is not located within the cell.
- **D.** The cell membrane is not an organelle because it does not transport materials across its membrane.

### Explanation:

In prokaryotic cells, the cell membrane is a critical structure and plays various essential roles. However, it is incorrect to classify the cell membrane as an organelle. 

- **Option A:** Incorrect. The cell membrane has specific functions, including protecting the cell, controlling the movement of substances in and out of the cell, and acting as a communication interface.
- **Option B:** Incorrect. The cell membrane is found in all prokaryotic cells. It is a fundamental component of the cell structure.
- **Option C:** Correct. The cell membrane surrounds the cell and is not considered an internal structure, thus it is not typically classified as an organelle.
- **Option D:** Incorrect. The cell membrane does transport materials across its membrane through processes like passive and active transport.

Understanding these distinctions helps clarify the roles and definitions related to cell structures in biology.
Transcribed Image Text:**Cell Membrane and Prokaryotic Cells: Understanding the Basics** *Question:* A student argues that the cell membrane is an example of an organelle in prokaryotic cells. What is one problem with this argument? **Options:** - **A.** The cell membrane is not an organelle because it has no specific function. - **B.** The cell membrane is not an organelle because it is not found in all prokaryotic cells. - **C.** The cell membrane is not an organelle because it surrounds the cell and is not located within the cell. - **D.** The cell membrane is not an organelle because it does not transport materials across its membrane. ### Explanation: In prokaryotic cells, the cell membrane is a critical structure and plays various essential roles. However, it is incorrect to classify the cell membrane as an organelle. - **Option A:** Incorrect. The cell membrane has specific functions, including protecting the cell, controlling the movement of substances in and out of the cell, and acting as a communication interface. - **Option B:** Incorrect. The cell membrane is found in all prokaryotic cells. It is a fundamental component of the cell structure. - **Option C:** Correct. The cell membrane surrounds the cell and is not considered an internal structure, thus it is not typically classified as an organelle. - **Option D:** Incorrect. The cell membrane does transport materials across its membrane through processes like passive and active transport. Understanding these distinctions helps clarify the roles and definitions related to cell structures in biology.
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