Which cellular component is the nucleus?

Which cellular component is the nucleus?

• A. Cell body
• B. Nucleus
• C. Nucleolus
• D. Dendrite

Answer: (B)

Think of the nucleus as the cell’s command center. It houses the genetic material (DNA) that carries the instructions for making proteins and directing all cellular activities. The nucleus is enclosed by a double membrane called the nuclear envelope, with pores to regulate what goes in and out. Inside, you find the nucleolus, a region where ribosomal RNA is made and ribosome subunits begin to form. The other terms refer to different parts or concepts: a cell body (often called soma) is a neuronal term for the main part of a neuron, and a dendrite is a projection that receives signals. Because the nucleus is the membrane-bound organelle that contains and manages the cell’s genetic information, it is the correct choice.

Think of the nucleus as the cell’s command center. It houses the genetic material (DNA) that carries the instructions for making proteins and directing all cellular activities. The nucleus is enclosed by a double membrane called the nuclear envelope, with pores to regulate what goes in and out. Inside, you find the nucleolus, a region where ribosomal RNA is made and ribosome subunits begin to form. The other terms refer to different parts or concepts: a cell body (often called soma) is a neuronal term for the main part of a neuron, and a dendrite is a projection that receives signals. Because the nucleus is the membrane-bound organelle that contains and manages the cell’s genetic information, it is the correct choice.