Walkley, S. U. Department of Neuroscience, Rose F. Kennedy Center for Research in Mental Retardation and Human Development, Albert Einstein College of Medicine, Bronx, New York.
Holtzman, Eric Formerly, Department of Biological Sciences, Columbia University, New York, New York.
- Principal roles
- Involvement in disease
- Plants, yeast, and fungi
- Links to Primary Literature
- Additional Readings
A membrane-bounded digestive structure found within virtually all types of animal cells. Lysosome sizes, microscopic appearances, and other properties vary among different cell types and circumstances, owing in part to differences in their functions and states. Typical lysosomes (Figs. 1 and 2) are roughly spherical or elongate bodies, with largest dimensions of 0.1–1 μm (0.000004–0.00004 in.) or greater. Tens to hundreds may be present in a single cell. See also: Cell (biology); Cell organization
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