noun
- The inner, more fluid layer of cytoplasm in certain protozoans, especially ciliates; the endoplasm.
Usage: biology; technical; chiefly used in protozoology
Examples
- The endosarc of the paramecium contains the nucleus and other organelles.
- In ciliated protozoans, the endosarc is distinguished from the firmer outer ectosarc.
- The endosarc plays a key role in nutrient storage and metabolism in single-celled organisms.
- Microscopic examination revealed the granular structure of the endosarc.
- The boundary between the endosarc and ectosarc is clearly visible under high magnification.