Question

multiple choice question
what is the outer boundary of the cell?

nucleus
plasma membrane
cytoplasm

Explanation:

To determine the outer boundary of the cell, we analyze each option:

• The nucleus is the control center of the cell, containing genetic material, and is not the outer boundary.
• The plasma membrane (also called the cell membrane) is a selectively permeable membrane that forms the outer boundary of the cell, separating the cell's internal environment from the external environment.
• The cytoplasm is the gel - like substance within the cell, enclosed by the plasma membrane, and is not the outer boundary.

Answer:

B. Plasma membrane