Science, asked by unknown449, 14 hours ago

1) The nucleus controls all the activities of the cell and acts as a site of DNA material and protein synthesis. It is composed of some components which all together give the nucleus its functionality. Here is shown a figure of nucleus with some of its components labeled as A, B, C and D. can you name these components correctly?

* A – Nucleons; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
* A – Nucleus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
* A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
* A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nuclear wall

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Answered by nityabhattxd
23

Answer:

A - Neucleolus, B - Chromatin C - Nuclear Membrane, D - Nucleoplasm

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Answered by RitaNarine
4

The correct solution is option c. A - Nucleolus, B -Chromatin, C - Nuclear membrane and D - Nucleoplasm.

  • The "true" nucleus is an organelle present mainly in the eukaryotic cell that houses the organism's genetic information.
  • The nuclear envelope, nucleoplasm, nucleolus, and chromosomes are all components of the cell nucleus. The matrix found inside the nucleus, also known as karyoplasm, is called nucleoplasm.
  • The nuclear membrane is a two-layered structure that surrounds the nucleus's components. The endoplasmic reticulum and the outer layer of the membrane are interconnected. The tiny gaps present in the nuclear envelope is known as nuclear pores.
  • Genetic information in the form of chromatin, which is constituted of DNA and protein molecules. Based on the roles, chromatin is further divided into heterochromatin and euchromatin.
  • Heterochromatin is a highly compacted, transcriptionally inactive type of DNA that is found predominantly next to the nuclear membrane. Euchromatin is a less compacted chromatin arrangement that is abundant in a transcribing cell.
  • Inside the nucleus, the nucleolus is a robust, spherical-shaped structure. The nucleus of some eukaryotic species can include up to four nucleoli. By manufacturing ribosomes, the nucleolus serves an indirect function in protein synthesis.

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