Question

Which of the following statements about the nucleus and nucleolus is right?
A. The nucleus is membrane-bound while the nucleolus is non-membrane bound.
B. The nucleolus is membrane-bound while the nucleus is non-membrane bound.
C. Both nucleus and nucleolus are membrane-bound.
D. Both nucleus and nucleolus are not membrane-bound.

Answer 1

Hint: Within the cell, both nucleus and nucleolus are present, one of them would be an organelle, while the other is a sub-organelle since it is within the organelle. These two are the distinctive features of the eukaryotic cell.

Complete answer: Every organism has the most fundamental component of life, and that is the cell, and the nucleus is found in almost all cells. The nucleus is a large spherical structure present in the cell while Nucleolus is very small and present within the nucleus. The nucleus is connected by double-layered nuclear membranes. The nucleolus is not composed of any nuclear membrane. The nucleus is the organelle of the main cell. The nucleolus is a sub-organelle. The nucleus features chromosomes. The nucleolus comprises no chromosomes at all. The nucleus is the cell's brain and it manages all of the cell's operations. The nucleolus is simply a portion of the nucleus. DNA, the genetic material, is abundant in the Nucleus while nucleolus RNA is rich. The nucleus role is to regulate both cellular functions and inheritance. Nucleolus' primary function is ribosome organization and is involved in the metabolism of RNA.

A membrane-bound structure that is isolated from the cytoplasm is the nucleus. The membrane has small pores that allow diffusion and is called a nuclear membrane. The nucleolus is the dark central portion of the nucleus that is not enclosed by a membrane of any sort. It distinguishes itself from nuclear material only by its color.
Therefore, A-' The nucleus is membrane-bound while the nucleolus is non-membrane-bound' is the right option.

Note: The nucleolus, specifically the ribosomal nucleic acid or rRNA, is responsible for collecting and transcribing RNA. It is also responsible for the formation of the ribosome, which is required for the whole-cell to carry out activities.