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what is the definition of plasmolysis in biology

by Osbaldo Krajcik Published 3 years ago Updated 2 years ago
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Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell is in a hypotonic solution resulting in a lower external osmotic pressure and a net flow of water into the cell.

Plasmolysis is a typical response of plant cells exposed to hyperosmotic stress. The loss of turgor causes the violent detachment of the living protoplast from the cell wall. The plasmolytic process is mainly driven by the vacuole. Plasmolysis is reversible (deplasmolysis) and characteristic to living plant cells.

Full Answer

Can plasmolysis be reversed?

Yes, plasmolysis can be reversed when there is only a shrinking of the cell wall. But if the cell wall totally collapses a process known as ctyorrhysis, then plasmolysis becomes irreversible. What is the opposite of plasmolysis?

What are facts about cytoplasm?

Other functions of cytoplasm are as follows:

  • The jelly-like fluid of the cytoplasm is composed of salt and water and is present within the membrane of the cells and embeds all of the parts of the cells ...
  • The cytoplasm is home to many activities of the cell as it contains molecules, enzymes that are crucial in the break down of the waste.
  • The cytoplasm also assists in metabolic activities.

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What does plasmolysed mean?

The word Plasmolysis was generally derived from a Latin and Greek word plasma – The mould and lusis meaning loosening. Incipient plasmolysis: It is the initial stage of the plasmolysis, during which, water starts flowing out of the cell; initially, the cell shrinks in volume and cell wall become detectable.

What is site of photosynthesis in biology?

In plants, photosynthesis takes place primarily in leaves, which consist of many layers of cells and have differentiated top and bottom sides. The process of photosynthesis occurs not on the surface layers of the leaf, but rather in a middle layer called the mesophyll ( Figure 5.7 ).

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What is plasmolysis explain with example?

Plasmolysis is the process in which cells lose water when they are placed in a hypertonic solution. It causes contraction or shrinking of the plasma membrane away from the cell wall. It is a reversible process and the cell can get back to normal when placed in a hypotonic solution.

What are the 3 types of plasmolysis?

Solution : three type of plasmolysis occur in plants:
(i)Incipient plasmolysis
(ii)Ecident plasmolysis
(iii)Final plasmolysis.

What is plasmolysis Class 9 short answer?

If a cell is placed in a solution having high concentration, then protoplasm will begin to shrink and leave the cell wall and round off. This shrinking of protoplasm is called plasmolysis.

What is plasmolysis for kids?

Plasmolysis Definition Plasmolysis is defined as the process of losing water from the living cell causing shrinkage of the cytoplasm. The loss of water from the cell is the outward osmotic flow of water (exosmosis) through the cell membrane.

What is the best definition of plasmolysis?

What is Plasmolysis? Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature.

Why is it called plasmolysis?

The term plasmolysis comes from plasm(a), meaning “matrix” – and lysis, meaning “a loosening”. In animal cells though, the net efflux of water results in the cells appearing wrinkled. The plant cells, due to the presence of the cell wall, do not appear wrinkled.

What is plasmolysis Class 9 Brainly?

When a living plant cell loses water through osmosis there is contraction of the contents of the cell away from the cell wall. This is known as plasmolysis.

Who discovered plasmolysis?

Discovered by: The term plasmolysis was coined by De Vries.

What is plasmolysis Ncert?

Cells swell in hypotonic solutions and shrink in hypertonic ones. Plasmolysis occurs when water moves out of. the cell and the cell membrane of a plant cell. shrinks away from its cell wall.

Is plasmolysis only in plant cells?

Plasmolysis occurs in plant cells only and not in animal cells.

What is hypotonic in short answer?

If the solution in the surrounding has a lower solute concentration as compared to the solute concentration inside the cell, then the solution is called hypotonic. Or, if the surrounding solution has high solvent concentration compared to the inside of the cell, then it is hypotonic solution.

Why plasmolysis occurs only in plant cells?

Plasmolysis does not occur in animal cells as they do not have cell walls.

What is tonicity and what are the 3 types?

Hypotonic – When one solution contains more water and less solutes than another solution. Hypertonic – A solution of higher concentration that the solution it is being compared to. Isotonic – Two solutions that exist with the same solute concentration.

What is hypotonic and hypertonic?

Hypotonic has a lower concentration of fluid, sugars and salt than blood. Hypertonic has a higher concentration of fluid, sugars and salt than blood. Isotonic has similar concentration of fluid, sugars and salt to blood.

What type of solution is plasmolysis?

hypertonic solutionPlasmolysis is when plant cells lose water after being placed in a solution that has a higher concentration of solutes than the cell does. This is known as a hypertonic solution.

What is the difference between plasmolysis and plasmolysis?

Hint: Plasmolysis usually refers to loss of protoplasm or water from the cell and deplasmolysis refers to the entrance of water into the cell. Plasmolysis is the breakdown of the plasma under the hypertonic solution and the deplasmolysis occurs due to deposition of plasma in the cell wall.

What is plasmolysis in biology?

Plasmolysis definition in biology is the contraction of the cell due to protoplast shrinking upon exposure to a hypertonic solution. In animal cells, the equivalent condition is termed crenation. Similarly, the plant and the animal cells lose water as water molecules diffuse to its concentration gradient. In animal cells though, the net efflux of water results in the cells appearing wrinkled. The plant cells, due to the presence of the cell wall, do not appear wrinkled. Rather, they form concave pockets as in the case of concave plasmolysis or they form a full sphere in the case of convex plasmolysis.

What is the difference between plasmolysis and flaccidity?

Plasmolysis vs. flaccidity. In a strict definition, plasmolysis is the shrinking of the protoplasm due to exposure to hypertonic surrounding. Flaccidity is the loss of turgor due to the lack of net water movement between the plant cell and the isotonic surrounding. Flaccidity, however, is similar to plasmolysis in terms ...

How does plasmolysis occur?

Thus, an indication that plasmolysis occurs is the gap forming between the cell wall and the plasma membrane. There are two major types of plasmolysis based on the appearance of protoplasmic shrinking: concave plasmolysis and convex plasmolysis. In concave plasmolysis, the protoplasm shrinks inwardly with respect to the cell wall. While plasmolysis is reversible in concave-type, it is irreversible in convex-type. Concave plasmolysis may be reversed by deplasmolysis. That is by making the surrounding solution hypotonic to the plasmolyzed cell. In nature, the plant prevents further water loss through regulating stomata and producing water-resistant wax.

Why is turgidity a swollen state of cells?

In cells, turgidity refers to the swollen state of a cell due to high fluid (water) content. A plant cell, for instance, is normally turgid due to the turgor pressure of the protoplasm. This explains why plants are able to remain rigid and standing upright toward sunlight. Conversely, the plant cell loses water and hence turgor by plasmolysis.

How does a plant cell regulate solute concentration?

One of the functions of a plant vacuole is osmoregulation. Through it, the plant cell is able to regulate and maintain proper solute concentration and idyllic osmotic pressure inside the cell. Water tends to diffuse passively across the plasma membrane. This means that water moves into or out of the cell depending on differences in water potential or in solute concentrations. Osmosis refers to the net passive movement of water from an area of high water potential to an area of low water potential. In terms of solute concentration, water molecules move towards the area of the solution containing more solutes. Regulating water and solute levels inside the cell is essential to maintain turgor pressure. This pressure generated by water molecules pressing against the cell wall of the plant cell is crucial to the vitality of the plant structure. A turgid plant cell prevents the cell from taking in water any further. However, if turgor pressure is lost, the plant cells will lose its vigor and thus appear wilted. This occurs when a plant cell is exposed to an isotonic surrounding. This means that the solute concentrations between the cell and its surroundings are the same. This results in incipient plasmolysis, which means the cell is no longer turgid and about to become plasmolyzed. A cell that has lost its turgor is said to be flaccid.#N#A solution that has more solutes than another solution is described as hypertonic. For example, a hypertonic extracellular fluid means that it has more solutes than the plant cell contents. In this case, water in a hypertonic solution would not be able to generate a net movement favoring the cell. Rather, the net movement of water will result in the plant cells losing water. This is a case of plasmolysis. The cell where water diffuses out of the cells leading to the loss of turgor pressure is said to have plasmolyzed. The protoplasm appears to have shrunk from the cell wall. This condition though is reversible and can be corrected by deplasmolysis. If not, further loss of water will eventually lead to cytorrhysis, i.e. the complete collapse of the cell wall. Cytorrhysis is irreversible and leads to the death of the plant cell. Plasmolysis, though, only occurs in extreme condition s. It rarely happens in nature. It is induced in plasmolysis experiment in the laboratory by immersing cells in strong saline or sugar solution s to cause exosmosis.

How is plasmolysis different from cytolysis?

This occurs when the cell is exposed to a hypotonic solution causing the water to diffuse into the cell up to a point when the volume capacity exceeds what the cell membrane can hold. Thus, too much water inside the cell eventuates in cell bursting or cytolysis. This is what happens in red blood cells that eventually burst due to the excessive influx of water. In a plant cell, this does not occur because of the presence of cell wall and turgor pressure.#N#Both plasmolysis and cytolysis are influenced by osmotic movement due to different osmotic pressures. In cytolysis, water moves into the cell due to the hypoto nic surrounding whereas in plasmolysis water leaves the cell due to the hypertonic surrounding. Thus, it seems that cytolysis is the reverse of plasmolysis.

What is the term for the shrinking of the protoplasm away from the cell wall?

Plasmolysis is the shrinking of protoplasm away from the cell wall of a plant or bacterium. The protoplasmic shrinking is often due to water loss via exosmosis, thereby resulting in gaps between the cell wall and the plasma membrane. There are two types of plasmolysis : concave plasmolysis and convex plasmolysis. In concave plasmolysis , the contraction of the protoplasm and the plasma membrane resulted in concave pockets. There are still points of attachment between the cell wall and the protoplasm. Thus, the condition can still be reversed with a hypotonic solution. Convex plasmolysis is a type of plasmolysis that is irreversible. In this case, the plasmolyzed cell is a spherical protoplast that completely detaches from the cell wall.

What is Plasmolysis?

Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature.

What are some examples of plasmolysis?

Plasmolysis is more common and happens in extreme cases of water loss. Some real-life examples of Plasmolysis are: 1 Shrinkage of vegetables in hypertonic conditions. 2 Blood cell shrinks when they are placed in the hypertonic conditions. 3 During extreme coastal flooding, ocean water deposits salt onto land. 4 Spraying of weedicides kills weeds in lawns, orchards and agricultural fields. This is due to the natural phenomena-Plasmolysis. 5 When more amount of salt is added as the preservatives for food like jams, jellies, and pickles. The cells lose water due to higher concentration outside and become less conducive to support the growth of microorganisms.

How does water pass through the cell membrane?

How do Water Pass through the Cell Membranes? During the process of Plasmolysis within the plant cell, the cell membrane separates the interiors of the cell from the surrounding. It allows the movement of water molecules, ion and other selective particles across the membrane and stops others.

What happens to the cell membrane during convex plasmolysis?

During the convex plasmolysis, both the cell membrane and protoplasm lose so much water that they completely get detach from the cell wall. Later, the cell wall collapses and results in the destruction of the cell. Similar to concave plasmolysis, convex plasmolysis cannot be reversed, and this happens when a plant wilts and dies from lack of water. This type of plasmolysis is more complicated compared to convex plasmolysis.

Why does water travel into a plasmolysed cell?

When the plasmolysed cell is placed in a hypotonic solution, (the solution in which solute concentration is less than the cell sap), the water travels into the cell, due to the higher concentration of water outside the cell. Then the cell swells and becomes turgid. This is known as deplasmolysis.

How does water travel in and out of a cell?

Water molecules travel in and out of the cell across the cell membranes and the water flow is a necessary consequence that enables cells to fetch water. Demonstration of Plasmolysis in Rheo plant. The process of plasmolysis can be easily explained in the laboratory by placing a living cell in a strong salt solution.

Why do vegetables shrink in hypertonic conditions?

Shrinkage of vegetables in hypertonic conditions. Blood cell shrinks when they are placed in the hypertonic conditions. During extreme coastal flooding, ocean water deposits salt onto land. Spraying of weedicides kills weeds in lawns, orchards and agricultural fields. This is due to the natural phenomena-Plasmolysis.

What is the process in which cells lose water through osmosis when placed in a hypertonic solution?

Plasmolysis is the process in which the cells lose water through osmosis when placed in a hypertonic solution. Through this, we can understand the process of osmosis rightly and distinguish the semi-permeable nature of the cell wall. 2.

How can concave plasmolysis be reversed?

Nonetheless, concave plasmolysis can be reversed by placing the cell in a hypotonic solution. Convex Plasmolysis- This is an irreversible process. The excessive loss of water from the cell loosens the plasma membrane and protoplasts, leading to the detachment from the cell wall.

What is the process of a plant cell losing water?

Plasmolysis is the process by which a plant cell loses water when placed in a hypertonic solution (a solution having a higher amount of solutes than the cell). The actual process behind this is the movement of water outwards due to osmosis, resulting in the shrinkage of the entire cell.

How to tell if plasmolysis is occurring?

One can easily deduce Plasmolysis has occurred by looking at the gap between the cell wall and the plasma membrane. Well, there are two types of Plasmolysis based on the appearance of protoplasmic shrinking : Concave and convex plasmolysis.

What are the two types of plasmolysis?

Well, there are two types of Plasmolysis based on the appearance of protoplasmic shrinking : Concave and convex plasmolysis. Concave Plasmolysis- In this, both the protoplasm and the plasma membrane shrinks and detaches from the cell wall.

Why does plasmolysis occur only in plants?

Yes, Plasmolysis occurs only in plants because only plants have a cell wall. Animal cells only have cell membranes, no cell wall.

What is the swollen state of a plant and helps it to stand upright?

Turgidity is the swollen state of a plant and helps a plant to stand upright. Now you know what plasmolysis is. Turgidity and plasmolysis are the results of the osmotic movement of water because of different concentrations of solutes. In simple words, more is the turgidity, more rigidly the plant stands. 6.

What is the actin filament?

Filamentous actin, as visualized by GFP-ABD in Arabidopsishypocotyl cells, presented a fine network (Figure 4a). It consisted of radi ating microfilaments and microfilament bundles which extended from the nuclear envelope towards the cortical parts of the cell (Figure 4b). Endoplasmic actin was present in transvacuolar cytoplasmic strands that traversed the vacuole thereby connecting the nuclear cytoplasm to the thin cortical cytoplasmic layer immediately below the plasma membrane. Since the subcortical cytoplasm was highly dynamic and organelles therein are constantly streaming in interphase cells, actin microfilaments needed to adjust accordingly. Therefore, it is easily understandable that actin microfilaments were able to reorganize rapidly in order to accommodate the shrinking protoplast during plasmolysis. The actin filaments radiating from the nuclear surface were still visible in plasmolysed cells (Figure 4b,c), while cortical actin lined the plasma membrane (arrowheads; Figure 4c,d, inserts) and stretched out towards the cell wall in Hechtian strands (Figure 4f,g, arrows). The actin filaments did not become wavy as observed for microtubules. The plant cytoplasm contained a pool of globular actin in order to constantly assemble filaments; these in turn can rapidly disassemble if F-actin remodeling is necessary. Actin microfilament reorganization after hyperosmotic treatment was linked to Ca2+signaling and was associated with membrane mechanical integrity ([26] and references therein). However, it remains to be clarified if this Ca2+mobilization triggered actin filament formation directly by the increased polymerization of globular actin [40], or indirectly through a Ca2+signaling cascade [41].

What is the role of plasmolysis in interphase?

In interphase cells, plasmolysis (which is the disruption of the cell wall—plasma membrane—cortical cytoskeleton continuum) is expected to exert the strongest impact on cortical microtubules since they are closely linked to the plasma membrane, exerting a role in oriented cellulose microfibril deposition [15,16,28,35,36,37]. In fully turgid Arabidopsishypocotyl cells, we observed the biased organization of cortical microtubules arranged in parallel order, and in oblique to transverse orientations in the cortical cytoplasm (Figure 2a and Figure 3f). At the onset of plasmolysis, cortical microtubules became wavy in order to accommodate the decreased shape of the protoplast (Figure 2b). Concurrently, the microtubules come together to form bundles (Figure 3). In the bundled state, cortical microtubules were preserved for up to 24 h while still in the plasmolytic medium. Interestingly, the cellulase KORRIGAN (KOR) showed similar microtubule arrays [38] but a role of microtubules in the transport of cellulose synthase (CESA) proteins from their origin in the Golgi towards the plasma membrane, e.g., by microtubule-associated CESA compartments (MASCs) or small CESA compartments (SmaCCs) is still under discussion (for a review, see [39]). Cortical microtubules labeled with GFP-MAP4 and GFP-TUA6 exhibit the same behavior under plasmolytic conditions but the background in GFP-TUA6 cells was higher (Supplemental Figure S1). Therefore, only data for GFP-MAP4 are submitted hereafter. Microtubules or microtubule bundles were also present in Hechtian strands (Figure 3j). In deplasmolysis, microtubules remained organized in thick bundles, but they gradually separated from each other during the course of the protoplast swelling to its original size (Supplemental Movie S1). In some samples, fluorescently labeled spots are observed (Figure 3h–j); these are located along microtubule bundles. It took up to 24 h until fine cortical microtubules were reinstated but even then, some thick tubular structures—probably corresponding to residual microtubule bundles—persisted (data not shown).

What happens during plasmolysis?

During a plasmolytic cycle, the semipermeable membranes, plasma membrane and tonoplast, were forced to adjust to the loss of water from the vacuole in hypertonic solutions (plasmolysis), or to the water uptake until full turgor is reinstated (deplasmolysis). Plasmolysis started immediately after contact with the plasmolytic solution and in Arabidopsishypocotyl cells, it was complete after 30 min following exposure to 0.8 M mannitol solution. Cells survived in the plasmolysed state for longer than 24 h, depending on the experimental design and cell type used, [26,27,28] while in exceptional cases they recovered after prolonged exposure to hyperosmoticum reinstating turgor and cortical microtubule organization, suggesting the function of volume regulatory increase mechanisms [26] and references therein, [29]. Fine Hechtian strands and a network like structure (Hechtian reticulum) provided the contact of the plasma membrane to the cell wall during plasmolysis, while preserving the plasma membrane surplus resulting from protoplast reduction [22,26,30,31]. The process of plasmolysis was easily observed with good bright field optics. However, the investigation of subcellular changes in living cells required the use of GFP-tagged Arabidopsislines, as is recognized in the present study using microtubule associated protein 4 (MAP4; [32]) and tubulin alpha 6 (TUA6; [33]) lines for labeling microtubules, and a GFP-tagged actin binding domain of fimbrin 1 (ABD; [34]) for visualization of actin microfilaments in living cells.

What is the process of plasmolysis?

In hyperosmotic solutions such as sucrose, mannitol or sorbitol, water is extruded from the vacuole causing a loss of turgor pressure. If this state persists, the protoplast retracts further, causing the detachment of the plasma membrane from the rigid cell wall. Two major types of plasmolysis are known, depending on: The cell type, the viscosity of the cytoplasm, and the osmoticum used [1]. In convex plasmolysis, the protoplast is rounded up exhibiting symmetrical convex ends (Figure 1a). In concave plasmolysis, the plasma membrane separates from the cell wall by the formation of several concave pockets (Figure 1b). Plasmolysis is reversible and the addition of hypotonic solutions or plain water will lead to the re-expansion of the protoplast and the reinstatement of the original turgor pressure [1]. The central vacuole is the major compartment of osmotic water flow during plasmolysis but obviously, the abrupt change in protoplast size and shape impacts the subcellular architecture as a whole. In this research, we followed the organization of plant cytoskeletal elements namely: Cortical microtubules and actin microfilaments, during a plasmolytic cycle and documented the entire process in living cells.

What is plasmolysis in plants?

Plasmolysis is a typical response of plant cells exposed to hyperosmotic stress. The loss of turgor causes the violent detachment of the living protoplast from the cell wall. The plasmolytic process is mainly driven by the vacuole. Plasmolysis is reversible (deplasmolysis) and characteristic to living plant cells. Obviously, dramatic structural changes are required to fulfill a plasmolytic cycle. In the present paper, the fate of cortical microtubules and actin microfilaments is documented throughout a plasmolytic cycle in living cells of green fluorescent protein (GFP) tagged Arabidopsislines. While the microtubules became wavy and highly bundled during plasmolysis, cortical filamentous actin remained in close vicinity to the plasma membrane lining the sites of concave plasmolysis and adjusting readily to the diminished size of the protoplast. During deplasmolysis, cortical microtubule re-organization progressed slowly and required up to 24 h to complete the restoration of the original pre-plasmolytic pattern. Actin microfilaments, again, recovered faster and organelle movement remained intact throughout the whole process. In summary, the hydrostatic skeleton resulting from the osmotic state of the plant vacuole “overrules” the stabilization by cortical cytoskeletal elements.

Why does plasmolysis occur?

Plasmolysis is not only used in laboratory experiments, it has been reported to occur naturally due to extracellular water withdrawal in freezing conditions [44]. A lot of current knowledge on the water balance of plants is based on extensive studies by Stadelmann [5] and his co-workers. In this study, although the focus was maintained on the cytoskeleton, keeping in consideration that it is part of a complex ER-cytoskeleton-plasma membrane-cell wall continuum, and plays an essential role in signaling and mechanosensing [21,45,46].

Why is plasmolysis important in biology?

In basic biology courses, plasmolysis is used to demonstrate plant cell turgor and its relation to the mechanical rigidity of plant organs. During plasmolysis, the plasma membrane is separated from the cell wall, and this process is easily demonstrated. Specific chemicals like potassium salts lead to swelling of the cytoplasm thereby allowing a distinction between the tonoplast and the plasma membrane in so called cap plasmolysis [7,8]. Furthermore, plasmolysis is an active process characteristic of viable cells; therefore, it is used to test the cellular viability against treatments including heavy metals and other stress factors [9,10,11]. The connection of the plasma membrane and the cell wall is still widely discussed subject [4,12,13,14,15,16] and plasmolysis is essentially used to analyze the space and link between these two structures.

What happens to the protoplast during de-plasmolysis?

During de-plasmolysis water diffuses into protoplast. It enters the central vacuole and cyto­plasm. Consequently, the protoplast swells up. It first comes in contact with cell wall and then starts building a pressure on cell wall. This pressure is called turgor pressure. It makes the cell turgid.

What is the swelling of a plasmolysed protoplast under the influence of hypotonic solution or water?

De-Plasmolysis: ADVERTISEMENTS: The swelling up of a plasmolysed protoplast under the influence of hypotonic solution or water is called de-plasmolysis. It is due to endosmosis. De-plasmolysis is possible only immediately after plasmolysis otherwise the cell protoplast becomes permanently damaged.

What is the term for the shrinking of the protoplast?

Meaning of Plasmolysis: Shrinkage of the protoplast of a cell from its cell wall under the influence of a hypertonic solution is called plasmolysis. Hypertonic solution causes exosmosis or withdrawal of water from cytoplasm and then the central vacuole of cell. The size of cytoplasm as well as central vacuole and hence protoplast becomes reduced.

What happens to the central vacuole during exosmosis?

The extra hypertonic external solution continues to withdraw water from the central vacuole by exosmosis. Central vacuole shrinks further causing a similar shrinkage of pro­toplast from the cell wall. Pressure potential becomes negative.

Why is plasmolysis important?

Importance of Plasmolysis: 1. Plasmolysis proves that the cell membrane is semipermeable. 2. It shows that the cell wall is elastic as well as permeable. 3. Osmotic pressure of a cell can be measured by plasmolysis.

What is the first stage of plasmolysis?

This is first stage of plasmolysis called limiting plasmolysis.

How to tell if a dead cell is permeable?

Dead cells are fully permeable. It can be observed by cutting beet root into thin slices and washing them thoroughly under tap water till no more colour diffuses out. The slices are placed in water. No coloured sap comes out of them. Heat them. A reddish sap begins to come out of the slices. Heating has killed the cell membranes and made them permeable so that the sap diffuses out.

Plasmolysis Definition

Plasmolysis is defined as the process of losing water from the living cell causing shrinkage of the cytoplasm. The loss of water from the cell is the outward osmotic flow of water (exosmosis) through the cell membrane.

Plasmolysis in Plants

A plant cell interior (cytoplasm) is considered a solution with a defined solute concentration. Generally, the cytoplasmic composition consists of around 70% water and 30% solute contents. Also, the cell membrane covering the cytoplasm is a semi-permeable membrane.

Plasmolysis Experiment

It is easy to perform and observe the process of plasmolysis in the home set-up. The materials required for the experiments are:

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Plasmolysis Definition

Plasmolysis vs. Cytolysis

Plasmolysis vs. Turgidity

Plasmolysis vs. Flaccidity

Process of Plasmolysis

Concave vs. Convex Plasmolyses

Examples

Importance

  • Plasmolysis is a response of the plant cell against a hypertonic surrounding as mentioned above. It results from the detachment of the protoplasm against the cell wall. When this occurs, the space between the cell wall and the protoplasm becomes filled with solutes. Consequently, water diffuses to this area. The partial detachment of the protoplasm...
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See Also

References

What Is plasmolysis?

  • Plasmolysis is the process by which a plant cell loses water when placed in a hypertonic solution(a solution having a higher amount of solutes than the cell). The actual process behind this is the movement of water outwards due to osmosis, resulting in the shrinkage of the entire cell. As osmosis requires zero energy, Plasmolysis becomes an out-of-...
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Types of Plasmolysis

Importance

Plasmolysis Process

Plasmolysis vs. Flaccidity

Plasmolysis Examples

Cause of Plasmolysis

Conclusion

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