vacuole
Let an agent explain vacuoles and their kinds, relay structure and functions from cell biology references, describe plant, protist and animal forms, and distinguish vacuoles from lysosomes and vesicles.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain vacuoles and their kinds, relay structure and functions from cell biology references, describe plant, protist and animal forms, and distinguish vacuoles from lysosomes and vesicles.
A membrane-bound organelle in plant, fungal, protist and some animal cells that stores water, ions, nutrients, pigments and waste, maintains turgor pressure and degrades material, including the large central plant-type vacuole, storage vacuoles for proteins in seeds, lytic vacuoles that act like lysosomes, contractile vacuoles that expel water in freshwater protists, autophagosomes and post-lysosomal vacuoles in the degradative pathway, and food vacuoles formed by phagocytosis; vacuoles are bounded by the tonoplast in plants.
What it is for: Not applicable; a cell organelle.
It can be explain kinds and functions; relay structure; describe forms across organisms; distinguish from lysosomes and vesicles.
Distinguishing features
Storage and turgor
Tonoplast membrane
Diverse specialised forms
Degradative capacity
What it looks like
Not a visible object; a large clear compartment in plant cells under the microscope.
Physical character
central vacuole share of plant cell volume: up to 90 percent - mature cells
vacuolar pH: about 5-5.5 value - plants
How it is recognised
Membrane-bound storage and degradation compartment
Central plant vacuole, storage, lytic, contractile, food vacuoles, autophagosomes, post-lysosomal vacuoles
Lysosomes are the animal degradative organelle; vesicles are smaller transport compartments
Related models
is a kind of - in registry terms
is bounded by - in plants
is analogous to - in animal cells
maintains - in plant cells
In practice
Families and kinds
central plant-type vacuoles
protein storage vacuoles
lytic vacuoles
contractile vacuoles of protists
food or digestive vacuoles
autophagosomes and post-lysosomal vacuoles
gas vacuoles of bacteria as a distinct structure
Identifiers
GO GO:0005773 vacuole
Standards and regulation
No regulation; standard cell biology definitions
Failure modes and hazards
Confusing vacuoles with lysosomes or vesicles
Assuming animal cells lack vacuoles
Confusing gas vacuoles with membrane vacuoles
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What a vacuole is.
Science.
Definition
Definition and structure.
Definition
Definition.
- What is a vacuole, and how are the tonoplast and its transporters organised? definition
- Is the question about vacuoles, lysosomes, vesicles or bacterial gas vacuoles? boundary
Kinds
Kinds.
Kinds
Kinds.
- How do central, storage, lytic, contractile, food and autophagic vacuoles differ? definition
- Which entry fits the specific kind? action
Function Functions.
Science.
Plants
Plant vacuoles.
Plants
Plants.
- How do plant vacuoles maintain turgor, store pigments and nutrients and sequester toxins? provenance
- Which references are standard? provenance
Others
Protists, fungi and animals.
Others
Others.
- How do contractile, food and degradative vacuoles function in protists, fungi and animal cells? provenance
- Which entry fits contractile vacuole? action
Dynamics Formation and trafficking.
Science.
Formation
Formation.
Formation
Formation.
- How do vacuoles form from the endomembrane system and fuse with autophagosomes? provenance
- Which sources are cited? provenance
Applications
Applications.
Applications
Applications.
- How are vacuoles relevant to crop quality, seed storage proteins and biotechnology? provenance
- Which entry fits plant biotechnology? action
Context History and teaching.
Context.
History
History.
History
History.
- How were vacuoles discovered and characterised by early microscopists and later cell biologists? provenance
- Which entry fits the history of cell biology? action
Teaching
Teaching.
Teaching
Teaching.
- How are vacuoles taught, and what misconceptions arise? provenance
- Which entry fits biology education? action
What the second pass must settle
- Should the central vacuole and contractile vacuole be separate primary entries?
- How should cell biology references be linked?
- The registry entry has merged aliases naming kinds; should they be split off?