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InicioDiccionarioAacrosome

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acrosome

The cap-like organelle derived from the Golgi apparatus that covers the anterior half of a spermatozoon's nucleus and contains enzymes that penetrate the egg.
Noun
pl: acrosomes

This term is a specialized biological descriptor used almost exclusively in the context of reproductive physiology and cytology. It describes a specific organelle with a singular, critical function: the chemical penetration of the egg's protective layers. Because it is a technical term, it is typically found in medical textbooks, research papers, and academic discussions rather than general conversation.

In a clinical or diagnostic context, the term is often associated with the acrosome reaction, the process by which the organelle releases its enzymatic contents. Failure of this process is a primary focus in studies of male infertility, making the word a key marker in reproductive medicine.

Meanings

Noun

The cap-like organelle derived from the Golgi apparatus that covers the anterior half of a spermatozoon's nucleus and contains enzymes that penetrate the egg.

The acrosome releases enzymes to break down the outer membrane of the ovum.

Examples

The acrosome contains the enzymes necessary to penetrate the outer layer of the egg.

none

The acrosome contains the enzymes necessary to penetrate the outer layer of the egg.

Look at this slide and notice how the acrosome covers the front of the nucleus.

School Life

Look at this slide and notice how the acrosome covers the front of the nucleus.

Without a functional acrosome, the sperm cannot fertilize the ovum.

none

Without a functional acrosomethe sperm cannot fertilize the ovum.

I wonder if the acrosome reaction happens immediately upon contact with the zona pellucida.

none

I wonder if the acrosome reaction happens immediately upon contact with the zona pellucida.

The Golgi apparatus is responsible for forming the acrosome during spermatogenesis.

none

The Golgi apparatus is responsible for forming the acrosome during spermatogenesis.

Is the acrosome essentially a specialized lysosome?

School Life

Is the acrosome essentially a specialized lysosome?

The release of enzymes from the acrosome allows the sperm to bore through the egg membrane.

none

The release of enzymes from the acrosome allows the sperm to bore through the egg membrane.

The electron microscope clearly shows the dense structure of the acrosome.

none

The electron microscope clearly shows the dense structure of the acrosome.

If the acrosome is damaged, fertilization will likely fail.

none

If the acrosome is damagedfertilization will likely fail.

Related Words

spermspermatozoongametefertilizationeggovumzona pellucidaenzymehyaluronidaseproteasevesiclelysosomeGolgi apparatusorganellenucleuscentriolemitochondrionflagellumtailheadplasma membranecytoplasmspermatogenesistestisseminiferous tubulespermatidspermatocytespermatogoniummeiosismitosishaploiddiploidchromosomechromatinDNAproteinlipidmembraneexocytosisfusionpenetrationbindingreceptorligandcytoskeletonmicrotubuleaxonememotilitychemotaxiszygoteembryoreproductionbiologycytologyhistologyanatomyphysiologyendocrinologyhormonetestosteroneandrogengonadgametogenesis
Última actualización: May 2026Reportar un error