Definition

1. Noun:
   • The protoplasm that constitutes the nucleus of a cell: Karyoplasm refers specifically to the viscous, gel-like substance contained within the nuclear envelope of a cell, excluding the nucleolus. It is the matrix in which chromatin and the nucleolus are suspended.

Usage Examples

• Noun:
  • The chromosomes are suspended within the karyoplasm.
  • Scientists study the composition of the karyoplasm to understand genetic regulation.
  • The nucleolus is a distinct structure embedded in the karyoplasm.

Advanced Usage

• "Karyoplasmic" (adjective): Pertaining to or of the nature of karyoplasm.
  • The karyoplasmic fluid was extracted for analysis.
• In scientific contexts: Often used interchangeably with "nucleoplasm," though some texts make subtle distinctions regarding included components.
  • The transport of molecules between the cytoplasm and the karyoplasm is highly regulated.

Variants and Related Words

• Nucleoplasm (n): A near-synonym for karyoplasm; the protoplasm of the cell nucleus.
• Cytoplasm (n): The material within a living cell, excluding the nucleus. This contrasts with karyoplasm.
• Protoplasm (n): The living content of a cell that is surrounded by a plasma membrane. Karyoplasm is a specialized type of protoplasm.

Synonyms

• Nucleoplasm: The substance forming the nucleus of a cell.
• Nuclear matrix: The network of fibers within the nucleus, often considered part of or associated with the karyoplasm.

Related Phrases

• Karyoplasmic ratio: The ratio of the volume of the nucleus (karyoplasm) to the volume of the cytoplasm in a cell.
  • The karyoplasmic ratio is often high in rapidly dividing cells.

Noun

1. the protoplasm that constitutes the nucleus of a cell