The number of nuclear pores in the nuclei of differentiated cells such as erythrocytes is only:
Correct answer: C. 3-4 nuclear pores/nucleus
- A. 1-2 nuclear pores/nucleus
- B. 2-3 nuclear pores/nucleus
- C. 3-4 nuclear pores/nucleus
- D. 5-6 nuclear pores/nucleus
Explanation
A differentiated cell which have been assigned a specific role and is not destined to divide further is less active metabolically and need less guidance from chromosomes and genes. Thus have less nuclear pores for communication with nucleus.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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More Cell Structure and Function questions
The exchange of material between the nucleus and the cytoplasm is carried out through:
The outer and inner nuclear membranes are continuous at certain points, resulting in the formation of:
The membrane that separates the nuclear material from the cytoplasm is:
The example of undifferenfiated cells is that of:
Number of nucleoli may be:
It is the place where ribosomes are assembled and then exported to the cytoplasm via nuclear pores.