General Science • BiologyEasy
What is the name of the double-layered membrane that encloses the nucleus in eukaryotic cells?
A. Tonoplast
B. Nuclear envelope✓ Correct Answer
C. Sarcolemma
D. Plasmodesmata
💡 Solution & Explanation
The nuclear envelope is a specialized double-membrane structure perforated by nuclear pores that encases the genetic material in eukaryotic cells. Tonoplasts instead refer to the vacuolar membrane in plant cells, proving distinct from nuclear boundaries. Cell biology basics like organelle ultrastructure are standard requirements for general science testing.
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