Karyoplasm
Karyoplasm
Karyoplasm (pronounced: /ˈkæriəˌplæzəm/), also known as nuclear sap, is the fluid found within the nucleus of a cell. It is similar to the cytoplasm in that it contains the substances necessary for the life processes of the cell.
Etymology
The term "karyoplasm" is derived from the Greek words "karyon" meaning "nut" or "kernel", and "plasma" meaning "something formed or molded". This is in reference to the substance's role in forming the nucleus of the cell.
Composition
Karyoplasm is composed of water, a variety of ions, and a complex assortment of organic molecules including enzymes, nucleotides, and nucleic acids. It is within the karyoplasm that the cell's DNA is found, along with the associated proteins that help to organize and regulate the DNA.
Function
The primary function of the karyoplasm is to serve as the site for the synthesis of RNA and protein. It also plays a crucial role in the replication of DNA during cell division.
Related Terms
- Nucleus: The central part of a cell that contains the karyoplasm and the nucleolus.
- Cytoplasm: The fluid that fills a cell and surrounds the nucleus, distinct from the karyoplasm.
- Nucleolus: A small body within the nucleus that is rich in RNA and proteins, and is the site of ribosome production.
- Cell: The basic structural and functional unit of all organisms.
External links
- Medical encyclopedia article on Karyoplasm
- Wikipedia's article - Karyoplasm
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