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Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below.

Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below. Correct Answer 1 and 3 only

The correct answer is ​1 and 3 only.

Key Points

  • The cell membrane is the biological membrane that encloses the cytoplasm of the cell.
    • It is made up of a single lipid bilayer.
    • The main function of the cell membrane is to regulate the flow of molecules in and out of the cell. 
  • The nuclear membrane is the biological membrane that encloses the nucleus.
    • It contains two lipid bilayer structures.
    • While regulating the flow of materials in and out of the nucleus, the outer nuclear membrane is continuous with the endoplasmic reticulum.
  • Differences between a cell membrane and a nuclear membrane:
Cell Membrane Nuclear Membrane
The cell membrane is a semipermeable membrane surrounding the cytoplasm of a cell.  The nuclear membrane is a double membrane, enclosing a cell nucleus and having its outer part continuous with the endoplasmic reticulum. 
The cell membrane occurs in both prokaryotes and eukaryotes.  The nuclear membrane occurs only in eukaryotes.
The cell membrane encloses the cytoplasm of the cell. The nuclear membrane encloses the nucleoplasm.
The cell membrane comprises a single lipid bilayer structure. The nuclear membrane comprises two lipid bilayer structures.
The cell membrane persists throughout the lifetime of a cell. The nuclear membrane disappears and reforms during the nuclear division.
  • Hence, only statements 1 and 3 are correct.

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Related Questions

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