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protoplast

protoplast
Noun
pl: protoplasts

This term is primarily used in specialized biological and botanical contexts. In modern laboratory settings, it refers specifically to a plant cell that has been stripped of its cell wall, typically through enzymatic digestion, to allow for genetic manipulation or the study of membrane permeability.

In an evolutionary or historical biological context, the term takes on a more theoretical meaning, referring to a hypothetical primitive organism. This usage is less common in contemporary textbooks than the cellular definition but remains relevant in discussions regarding the origins of life.

Meanings

Nounprotoplast

The living part of a cell, consisting of the plasma membrane, cytoplasm, and nucleus, especially when the cell wall has been removed.

The researcher isolated the protoplast from the plant cell to study membrane transport.

Nounprotoplast

An ancestral form or an early primitive organism from which other forms are believed to have evolved.

Some biologists hypothesize a common protoplast as the origin of all cellular life.

Examples

The researcher used enzymes to strip the cell wall and isolate the protoplast.

School Life

The researcher used enzymes to strip the cell wall and isolate the protoplast.

We need to maintain an isotonic solution to prevent the protoplast from bursting.

School Life

We need to maintain an isotonic solution to prevent the protoplast from bursting.

Look at how the protoplast shrinks away from the wall during plasmolysis.

School Life

Look at how the protoplast shrinks away from the wall during plasmolysis.

Protoplast fusion allows scientists to create hybrid plants with desired traits.

School Life

Protoplast fusion allows scientists to create hybrid plants with desired traits.

I wonder if this specific protoplast can regenerate a full cell wall on its own.

none

I wonder if this specific protoplast can regenerate a full cell wall on its own.

The theory suggests that all complex life descended from a single primitive protoplast.

History

The theory suggests that all complex life descended from a single primitive protoplast.

Could a simple protoplast really be the origin of every species on Earth?

Trivia

Could a simple protoplast really be the origin of every species on Earth?

He argued that the ancestral protoplast lacked a defined nucleus.

School Life

He argued that the ancestral protoplast lacked a defined nucleus.

The fossil record provides clues about the nature of the earliest protoplast.

History

The fossil record provides clues about the nature of the earliest protoplast.

Related Words

ancestorforefatherprogenitordescendantoffspringcellcytoplasmmembraneplasma membranecell wallnucleusorganellecytosolvacuolechloroplastmitochondrionbiologybotanymicrobiologycytologycell biologyosmosisturgorplasmolysislysisenzymecellulasepectinasedigestionfusionhybridizationsomatic cellregenerationculturemediumagarpetri dishincubationproliferationdivisionmitosismeiosisgeneticsgenomechromosomeDNARNAproteinlipidcarbohydrateglucosesucroseosmotic pressureisotonichypertonichypotonicdiffusiontransportpermeabilityselective permeabilitycytoskeletonmicrotubulemicrofilamentcentrosomeorganismspeciesevolutionphylogenylineageoriginprimitiveeukaryoteprokaryotefungusyeastbacteriaarchaea
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