Practice question · Match the pairs
Match each nuclear structure to its function.
- Nuclear envelope
- Nuclear pore complex
- Nucleolus
- Nuclear lamina
- Controls what crosses the envelope
- A double membrane separating nucleus from cytoplasm
- Assembles ribosomal subunits
- Gives the nucleus mechanical shape and anchors chromatin
Hints
- Two structures concern the boundary, one concerns manufacturing and one structure.
- The lamina is an intermediate-filament mesh on the inner face.
Show the answer
- Nuclear envelope → A double membrane separating nucleus from cytoplasm
- Nuclear pore complex → Controls what crosses the envelope
- Nucleolus → Assembles ribosomal subunits
- Nuclear lamina → Gives the nucleus mechanical shape and anchors chromatin
Why
The envelope separates, the pores regulate, the nucleolus manufactures and the lamina supports. Lamin mutations cause progeria, which shows how much depends on the nucleus being mechanically sound.
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