În biologia celulară, nucleul (din limba latină nucleus, însemnând miez) este un organit celular înconjurat de o membrană dublă întâlnit la celulele eucariote. El conține cea mai mare parte din materialul genetic, aranjat sub forma mai multor molecule de ADN împreună cu o mare varietate de proteine , precum histonele , care ajută ...

2025年2月10日 · Nucleus, in biology, a specialized structure occurring in most cells (except bacteria and blue-green algae) and separated from the rest of the cell by a double layer, the nuclear membrane. The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes.

2024年10月8日 · The cell nucleus is the organelle that contains genetic material and controls the cell’s activities. The cell nucleus is a membrane-bound organelle that houses the genetic material in eukaryotic cells, functioning as the control center for cellular activity.It is one of the most defining features of eukaryotes, distinguishing them from prokaryotes, which lack a …

2017年7月30日 · Cell Nucleus Definition. The cell nucleus is a large organelle in eukaryotic organisms which protects the majority of the DNA within each cell. The nucleus also produces the necessary precursors for protein synthesis.

2019年3月13日 · The Structure of the Nucleus **Guarding the Fortress:** The nucleus is one of many **organelles** (French for "little organ") found in eukaryotic cells. All cells are membrane-bound by a double membrane, usually just called the _cell membrane_; all organelles also have a double plasma membrane that separates the organelle from the **cytoplasm**, the gelatinous substance that constitutes most ...

Nucleul este centrul coordonator al celulei eucariote, funcţionând ca un computer chimic prevăzut cu un program (ADN) şi memorie (ARN). Ca centru informaţional, nucleul coordonează toate reacţiile chimice de desfăşurare a proceselor vitale prin …

2025年3月12日 · Nucleul celular este un organit membranos prezent în celulele eucariote. Acesta conține ADN-ul (acidul deoxiribonucleic), materialul genetic care dictează structura și funcțiile celulei. În contrast, celulele procariote, cum ar fi bacteriile, nu au un nucleu organizat, ci un nucleoid în care este dispersat ADN-ul.

It is one of the main components of the nucleus. The chain of RNA and DNA along with other components form the structural components. The main components of the nucleolus are ribonucleic acid, deoxyribonucleic acid and proteins.. Also Read: Nucleus Structure of …

2016年5月23日 · Nucleul; Nucleul este cel mai important organit din celula, deoarece contine materialul genetic organizat sub forma de cromozomi. Nucleul este delimitat de o membrana (anvelopa) nucleara prevazuta cu pori si contine nucleoplasma cu 1-2 nucleoli.

2023年1月10日 · Here Is A List Of The Top 33 Interesting Facts About Nucleus: #1 The nucleus (plural, nuclei) is a spherical-shaped organelle that is present in every eukaryotic cell. It occupies approximately 10 percent of the total volume of the cell. #2 The smallest nuclei are about 1 μm in diameter and are found in yeast cells. But, the nucleus …