Sentences with phrase «when cell membranes»

It is no different when the cell membranes become inflamed and, therefore, clogged so to speak; toxins build up in the cell and lead to dysfunction and even cell death.

When a cell membrane is punctured, it induces a current between the inside and outside of the cell.

Not exact matches

Animal cells within the meat are surrounded by a thin membrane that is easily dissolved by digestive juices, however, when cooked quickly and at high temperatures, this membrane will toughen, slowing digestion and impairing nutrient uptake.

Chiles produce a waxy compound called capsaicin which cause a burning sensation when contacted with cell membranes.

This lectin binds to the membranes of T - cells in the body and interferes with cellular metabolism when consumed in sufficiently large quantities (SOURCE).

To help make ideas about energy more concrete, for example, the new unit will use a variety of analogies from more familiar physical systems (e.g., combustion and charging a cellphone battery) to help students understand those same energy - releasing and energy - requiring chemical reactions and energy transfer when they occur in living organisms (e.g., cellular respiration, creating a charge across a membrane in mitochondria and nerve cells) where the reactions are more complex and difficult to observe.

When calcium was administered directly into the cytoplasm, however, the IgG - treated cells exhibited normal exocytotic secretion, as assayed by membrane capacitance measurement.

At some point, Martin speculates, the bacterium gave the archaean a gene for membrane synthesis, leading to a bubbling up of membrane within the host cell, something like what happens when modern eukaryotes divide and then reform their nucleus from membrane pieces grown inside them.

But when Antoine Louveau, a researcher in Kipnis» lab, developed a dissection technique that wholly preserves the fragile membranes covering the mouse brain, it revealed something never seen before: Immune cells in the membranes were clearly organized, as if traveling within tubes.

An isoform of amphiphysin 2 concentrated at T - tubules induced tubular plasma membrane invaginations when expressed in nonmuscle cells.

When compounds that block the «message» channels in cell membranes were added to the dish, there was no damage to fibroblasts.

When a cell takes in things from the outside membrane, it pulls itself in like a basket to pull things in.

Ions are charged atoms or molecules and when ions accumulate on either side of a cell membrane, they form an ion gradient.

When added to human blood, the CP molecules stuck to the PC - groups on blood cell membranes because of their opposite charges.

The conventional view is that neurons fire when a channel within the cell membrane opens, flooding the neuron with positively charged ions.

When Toxoplasma infects a mammalian cell, it uses part of the cell's membrane to wrap itself in a little sac, called a vacuole.

When capsaicin binds to TRPV1, it causes the protein to open a gate leading to a small channel in the nerve cell's membrane.

«When we looked at the cells under the microscope, we saw neratinib, but not afatinib, causing large vesicles to form next to the cell's outer membrane.

And as the cell grows, the enzymes expand the membrane as well; when the cell divides, enzymes push apart the membrane and its contents into two new cells.

Membrane remodeling typically occurs during cell division, during cell movement as it slithers around, and during vesicle formation, when a small piece buds off like what you might see in a lava lamp.

When tungsten carbide is incorporated into the fuel cell membrane, it humidifies the membrane at a level that optimizes performance.

When the presynaptic neuron registers an influx of calcium ions, carrying the electrical surge of the action potential, vesicles that store neurotransmitters fuse to the cell's membrane and spill their contents outside the cell, where they bind to receptors on the postsynaptic neuron.

This extra snippet is key, they found: When added to similar proteins, it prevents them from eating through a cell's membrane, the team reports in the 3 November issue of Science.

When enough of the organisms gather together in a confined space, the compound becomes so concentrated that it permeates back through the cell membranes to combine with receptors inside the bacteria.

When attractant or repellant chemicals attach themselves to receptor sites on the surface membrane of a bacterium, it triggers a process within the cell that leads to the modification of the signal protein, CheY (pronounced «Key - Y»), enabling it to bind to the switch and change the bacteria's direction of movement.

Neurons generate an electrical spike when the flow of ions across the cell membrane rises above a set threshold.

It seems that some things passively flow through the cell membrane under various pressures, others are somehow actively pumped across the membrane and others are engulfed when the membrane folds inward

But when cells undergo stress — anything from heat to starvation or infection — proteins and ribonucleic acid (RNA) molecules can clump into stress granules, which are free of enclosing membranes and often form small globs akin to hair gel suspended in a tub of water.

When growing separately from followers, leaders increase their numbers at a slower rate, have erratic cell cycles and have more «blebs,» which are bulges of the cell membrane.

For instance, when they added mosquito saliva containing sporozoites to cultured mouse liver cells, 10 % to 30 % of the cells showed signs of punched membranes, the team reports in the 5 January issue of Science.

It has a «viral envelope» — similar to a cell membrane — that has two distinct weaknesses: It can swell and burst if the climate is cold and humid, and it dries up when the environment is hot and dry.

When the IP3R calcium channel receives signals, it creates a pathway for calcium ions to move across cell membranes.

Auxin pumps, green in these images, are normally nestled in plant cell membranes (left) but accumulated insides the cells when blocked by an inhibitor (right).

When these microtubular structures were disrupted, the actin ring migrated away from the cell middle in a membrane traffic — dependent manner, resulting in asymmetrical cell divisions that led to genomic instability.

Exosomes form inside cell compartments and release outside the cell when these compartments fuse with the cell's surrounding membrane.

Through further testing, they figured out that when Notch1 is activated and its intracellular domain is released, its TMD assembles a complex in the membrane with the proteins VE - cadherin, Rac1, LAR, and Trio, which collectively assemble and maintain the adherens junctions between cells and distribute actin fibers against the cell membrane to support those junctions.

The result could be useful for understanding the movement of water when squeezed inside tiny channels, for instance, in carbon nanotubes or cell membranes.

Previously, researchers have loaded red blood cells with drugs by pushing the molecules through the cell's membrane into its interior, but the process weakens the cell, and the molecules are released only when the cell reaches its final destination.

When the new cell is infected, however, the membrane becomes leaky for several hours before the schizonts burst out again, giving larger molecules like an antibody or vaccine a chance to get in.

When they killed the animals a week later, they found that the virus had broken apart dystrophin in their hearts and that the membranes of heart cells infected with Coxsackie B virus were more permeable to blue dye than uninfected cells.

When they put human macrophages in the lower compartment filled with cell culture medium, the cells rose toward the membrane.

The pools swelled when rain fell, but when they evaporated, the organic molecules in them became more concentrated, forming films like cell membranes, or joining into longer chains like strands of RNA.

One challenge is that GPCRs are exceedingly flimsy and fragile when not anchored within their native cell membranes.

More proof came when the researchers inhibited Udx1 with antibodies or drugs: the egg's membrane did not harden after fertilization, and multiple sperm entered, the team reports in this month's issue of Developmental Cell.

When in the pH range in most body tissues, the proteins are shapeless and limp, unable to get through cell membranes.

When other vaccinia viruses come knocking, long projections of another protein, actin, shoot out from the cell membrane, causing the virus to bounce off.

When expressed normally, the protein acts as an enzyme at the cell membrane, instigating a complex biochemical reaction that regulates the cell cycle and prevents cells from growing or dividing in an unregulated fashion.

But in science when things work, you tend to follow the next step, and it was in the mid-1980s working on red cell membranes, and I was trained as a hematologist, malaria was next on the agenda.

When the bacteria enter human cells, Gb3 lipids bind to LecA proteins and bend the membrane.

In the peripheral nervous system, myelin forms when «membrane tongues» extend from Schwann cells to spirally wrap around an adjacent axon.