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Vacuole

Definition

noun, plural: vacuoles

A membrane-bound vesicle found in the cytoplasm of a cell whose function includes intracellular secretion, excretion, storage, and digestion.


Supplement

It can be found in animal and plant cells, and it can be especially conspicuous in plant cells.


Word origin: Latin vacuolum, diminutive form of vacuum.

Related forms: vacuolar (adjective).
Related terms: condensing vacuole, contractile vacuole, digestive vacuole, gas vacuole.


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Eukaryotic and Prokaryotic

... are not only the presence/absence of cell walls, but in plant cells we find some organelles not present in animal cells, such as a large central vacuole, different plastids (of which the green chloroplasts, which are performing photosysnthesis are best known) and lack of centrioles.

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by SteveYst
Wed Oct 03, 2012 1:39 pm
 
Forum: Cell Biology
Topic: Eukaryotic and Prokaryotic
Replies: 4
Views: 11987

Amoeba, Paramecium, Diatom

... and ciliates. These are ingested into the cell by pseudopodia or false feet, they surround the prey and trap it in tiny drop of water forming food vacuole. I think Paramecium are found in freshwater ponds, lakes, streams, rivers and puddles. Some can even live in the bodies of animals or in most ...

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by Ayeshaa
Thu May 10, 2012 3:14 am
 
Forum: Microbiology
Topic: Amoeba, Paramecium, Diatom
Replies: 0
Views: 6513

Amoeba, Paramecium, Diatom

... and ciliates. These are ingested into the cell by pseudopodia or false feet, they surround the prey and trap it in tiny drop of water forming food vacuole. I think Paramecium are found in freshwater ponds, lakes, streams, rivers and puddles. Some can even live in the bodies of animals or in most ...

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by Ayeshaa
Tue May 08, 2012 2:31 pm
 
Forum: Botany Discussion
Topic: Amoeba, Paramecium, Diatom
Replies: 0
Views: 5567

boundaries for a substance to cross to enter the vacuole.

what about cell wall, plasma membrane and vacuole membrane?

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by JackBean
Wed Mar 14, 2012 3:05 pm
 
Forum: Cell Biology
Topic: boundaries for a substance to cross to enter the vacuole.
Replies: 1
Views: 1575

boundaries for a substance to cross to enter the vacuole.

there are three boundaries for a substance to cross to enter the vacuole in a plant cell, what are these boundaries>?

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by helterskelta
Tue Mar 13, 2012 12:00 pm
 
Forum: Cell Biology
Topic: boundaries for a substance to cross to enter the vacuole.
Replies: 1
Views: 1575
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