The term comes from the Latin word crenatus which means ‘scalloped or notched’. In biology and zoology, the term refers to an organism displaying the shape (such as a leaf or shell), while in chemistry, crenation is used to describe what happens to a cell or other object when it is exposed to a hypertonic solution.
What is crenation Class 9 biology?
Abnormal notching around the edge of erythrocytes due to shrinkage.
What is crenation in red blood cells?
When red blood cells are in a hypertonic (higher concentration) solution, water flows out of the cell faster than it comes in. This results in crenation (shriveling) of the blood cell.
What is crenation and how does it occur?
Crenation is a phenomenon that happens when animal cells are exposed to a hypertonic solution, which means that the solution in which the cells are bathed has a high concentration of solutes. Cells shrink and their forms become altered during crenation, generally with a ruffled or scalloped edge.
What is crenation and example?
: a crenate formation. especially : one of the rounded projections on an edge (as of a coin) : the quality or state of being crenate. : shrinkage of red blood cells resulting in crenate margins.
What is the other term for crenation?
Definitions of crenation. one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.) synonyms: crenature, crenel, crenelle, scallop.
What is hypotonic solution Class 9 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.
What is the difference between plasmolysis and crenation?
The key difference between crenation and plasmolysis is that crenation is the shrinkage and acquiring of a notched appearance by red blood cells when exposed to a hypertonic solution while plasmolysis is the shrinkage of plant cells when immersed in a hypertonic solution. The cell membrane is permeable to water.
What’s the difference between hemolysis and crenation?
Summary – Hemolysis vs Crenation Hemolysis occurs when red blood cells are in a hypotonic solution, causing red blood cells to swell up and burst due to water into the cells. Crenation occurs when red blood cells are in a hypertonic solution, causing red blood cells to shrivel due to water moving out of the cells.
What happens when a cell crenation?
The cell has a lower concentration of solutes than the surrounding extracellular fluid in a hypertonic environment, and water diffuses out of the cell through osmosis, causing the cytoplasm to shrink in volume. The cell shrinks as a result, and the cell membrane develops aberrant notchings.
What is it called when a red blood cell shrinks?
Crenation is defined as the process by which a blood cell shrinks when it is exposed to a hypotonic solution.
What causes crenated blood cells?
Crenated erythrocytes are most commonly caused by excess EDTA (underfilled collection tube), but may also be caused by (a) slow drying, (b) drying in a humid environment, or (c) an alkaline pH from glass slides. When crenation is an artifact, most cells on the slide will exhibit this characteristic.
What is crenation microbiology?
In biology, crenation describes the formation of abnormal notched surfaces on cells as a result of water loss through osmosis. Cells are usually in an isotonic solution inside the body, meaning that there is the same concentration of solute and water both inside and outside the cells.
What is hypotonic vs 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 is hypertonic solution?
Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood. For example, hypertonic solutions are used for soaking wounds.
What are the difference between hypotonic and hypertonic solution?
A hypotonic solution is a type of solution which encompasses anything that contains more water and limited solute compared to the cells. A hypertonic solution is a kind of solution which encompasses anything that contains more electrolytes or molecules than solvent or water.
What is the opposite of crenated?
Crenation (opposite of Lysis -cell swells/destroyed/hypotonic)
What means hemolysis?
Listen to pronunciation. (hee-MAH-lih-sis) The breakdown of red blood cells. Some diseases, medicines, and toxins may cause red blood cells to break down more quickly than usual.
What happens if a red blood cell is placed in a hypotonic solution?
When a red blood cell is placed in a hypotonic solution, there will be a net movement of free water into the cell. This situation will result in an increased intracellular volume with a lower intracellular solute concentration. The solution will end up with a higher overall solute concentration.
What is the opposite of hemolysis?
Hemolysis refers to the condition of red blood cells swelling up and breaking open while crenation refers to red blood cells shrinking in size as water leaves the cells.
What is the difference between lysis and crenation?
Crenation happens particularly in hypertonic environments, whereas cell lysis happens in hypotonic environments. By contrast, cells that possess a cell wall undergo plasmolysis rather than crenation.
What is it called when red blood cells swell?
Macrocytosis is a term used to describe red blood cells that are larger than normal.
What are the 3 types of osmosis?
What are the three types of osmotic conditions that affect living cells? The three types of osmotic conditions include- hypertonic, isotonic, and hypotonic.
Does hypotonic shrink or swell?
Although the presence of a hypotonic or hypertonic solution initiates swelling or shrinking, respectively, often the volume change is not maintained. A cell that initially swells when placed in a hypotonic medium may eventually lose some of its acquired volume: it undergoes a regulatory volume decrease or RVD.
What does hypotonic mean in biology?
A hypotonic solution has a lower concentration of solutes than another solution. In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol. Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated.