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nucleoplasm
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Side-by-side labeled diagrams of a typical animal cell and a plant cell, showing internal structures such as nucleus, mitochondrion, endoplasmic reticulum, and unique features like chloroplasts and cell wall in the plant cell.
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nucleoplasm

biology
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Side-by-side labeled diagrams of a typical animal cell and a plant cell, showing internal structures such as nucleus, mitochondrion, endoplasmic reticulum, and unique features like chloroplasts and cell wall in the plant cell.
Organelles of eukaryotic cells A defining feature of eukaryotic cells is the presence of membrane-bound organelles within the cytoplasm. Examples of such organelles include a clearly defined nucleus, mitochondria, chloroplasts (unique to plant cells), at least one Golgi apparatus, an endoplasmic reticulum, lysosomes, and peroxisomes.

The nucleoplasm is the gel-like substance that fills the nucleus of a cell, surrounding the chromatin and nucleolus. It is essentially the protoplasm of the nucleus.12

The nucleus itself is a vital organelle found in most eukaryotic cells, acting as the cell's control center. Its primary functions include storing and protecting the cell's genetic material, DNA, and regulating gene expression, which directs crucial cellular processes like metabolism and cell division. The nucleus is enclosed by a double membrane called the nuclear envelope, which has pores to control the passage of molecules between the nucleus and the cytoplasm.13

Within the nucleus, chromatin, composed of DNA and proteins, organizes the genetic material. The nucleolus is another key component, responsible for synthesizing ribosomal RNA and assembling ribosomes, which are essential for protein synthesis. The nuclear lamina, a protein network, provides structural support to the nucleus.145

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8 Britannica Sources
  1. nucleus
  2. nucleoplasm
  3. nucleus: Top Questions
  4. nucleolus
  5. histone: Top Questions
  6. cell - Nucleosomes: the subunits of chromatin
  7. cytoplasm
  8. protoplasm

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