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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > cell biology > cells > germ cells > spermatozoa > acrosome
Fields of Study > cell biology > cell structures > protoplasm > cytoplasm > organelles > cytoplasmic vesicles > lysosomes > acrosome
Fields of Study > cell biology > cell structures > intracellular space > cytoplasm > organelles > cytoplasmic vesicles > lysosomes > acrosome
Preferred Term:

acrosome

Definition:
The cap-like structure covering the anterior portion of sperm head. Acrosome, derived from lysosomes, is a membrane-bound organelle that contains the required hydrolytic and proteolytic enzymes necessary for sperm penetration of the egg in fertilization.
Concept Schemes:
NALT Full
NALT Core
Broader Concept:
spermatozoa, lysosomes
Related Concepts:
Entry Terms:
  • acrosomes
URI:
https://lod.nal.usda.gov/nalt/3134
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2020-02-19
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