OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The nuclear envelope is when the nucleus is surrounded by a double layer membrane.
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The nuclear envelope is when the cell nucleolus is surrounded by a double layer membrane.
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The nuclear envelope is when the nucleus is surrounded by a single layer membrane.
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The nuclear envelope is when the nucleolus is surrounded by a single layer membrane.
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Detailed explanation-1: -The nuclear envelope has a complex structure, consisting of two nuclear membranes, an underlying nuclear lamina, and nuclear pore complexes (Figure 8.1). The nucleus is surrounded by a system of two concentric membranes, called the inner and outer nuclear membranes.
Detailed explanation-2: -Nuclear Membrane The nuclear membrane is a double layer that encloses the cell’s nucleus, where the chromosomes reside.
Detailed explanation-3: -The nuclear envelope is also called nuclear membrane, is a double membrane layer that separates the contents of the nucleus from the rest of the cell. It is a barrier that physically protects the cells DNA from the chemical reactions that are occurring elsewhere in the cell.
Detailed explanation-4: -In eukaryotic cells, the nucleus is separated from the cytoplasm and surrounded by a nuclear envelope. This envelope safeguards the DNA contained in the nucleus.