Cytoplasm

Definition

Cytoplasm is the gel-like substance within the cell membrane, excluding the nucleus. It contains organelles, enzymes, and other vital components necessary for cellular functions.

5 Must Know Facts For Your Next Test

1. Cytoplasm in prokaryotic cells does not contain membrane-bound organelles like in eukaryotic cells.
2. It is the site of most metabolic activities, including glycolysis and cellular respiration.
3. The cytosol is the liquid part of the cytoplasm where many chemical reactions occur.
4. Ribosomes are freely suspended in the cytoplasm of prokaryotic cells, facilitating protein synthesis.
5. The cytoplasm helps maintain cell shape and consistency and provides a medium for molecular transport.

Review Questions

Related terms

Cell Membrane:

A selectively permeable barrier that surrounds the cell, controlling entry and exit of substances.

Ribosome:

A molecular complex that synthesizes proteins by translating mRNA.

Nucleoid:

An irregularly-shaped region within a prokaryotic cell where genetic material is located.