14 Questions
What is the primary function of the nucleus?
To store genetic information and regulate gene expression
What is the typical percentage of cell volume occupied by the nucleus?
10%
What is the term for the ratio of the size of the nucleus to the size of the cytoplasm?
Nuclear-to-cytoplasmic ratio
What type of chromatin is more condensed and less accessible to gene expression machinery?
Heterochromatin
In which type of cells is the nucleus often found in a peripheral position?
Adipocytes and skeletal muscle cells
What is the approximate diameter of the nucleus in human cells?
6 µm
What is the purpose of the nuclear envelope?
To distinguish the cytoplasm from the nucleus
Which of the following is a characteristic of the nucleus in animal cells?
It is the largest organelle in the cell
What is the significance of the nuclear-cytoplasmic ratio?
It is an indicator of cell malignancy
What is the function of euchromatin regions?
To regulate gene expression
Which of the following is a characteristic of the nucleus in some epithelial cells?
It is basally located in the cell
What is the shape of the nucleus in some cells?
Multilobed or flattened
Which of the following cells can have multiple nuclei?
Some eukaryotic cells
What is the location of the nucleus in adipocytes?
Peripheral
This quiz covers the structure and function of the nucleus, the largest organelle in eukaryotic cells. Learn about its size, membrane-bound features, and role in storing genetic information. Test your knowledge of cell biology!
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