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The parallel-plate flow chamber, in its original design, is capable of producing well-defined wall shear-stress in the physiological range of 0.01-30 dyn/cm 2.Shear stress is generated by flowing fluid (e.g., anticoagulated whole blood or isolated cell suspensions) through the chamber over the immobilized substrate under controlled kinematic conditions using a syringe pump.
In a single cycle of the pump, three sodium ions are extruded from and two potassium ions are imported into the cell. Looking at the process starting from the interior of the cell: The pump has a higher affinity for Na + ions than K + ions, thus after binding ATP , binds 3 intracellular Na + ions.
In cell respiration, the proton pump uses energy to transport protons from the matrix of the mitochondrion to the inter-membrane space. [1] It is an active pump that generates a proton concentration gradient across the inner mitochondrial membrane, because there are more protons outside the matrix than inside.
A flow in manifold can be represented by a channel network model. A multi-scale parallel channel networks is usually described as the lattice network using analogy with the conventional electric circuit methods. [4] [5] [6] A generalized model of the flow distribution in channel networks of planar fuel cells. [6]
Compared to the eukaryotic cell cycle, the prokaryotic cell cycle (known as binary fission) is relatively simple and quick: the chromosome replicates from the origin of replication, a new membrane is assembled, and the cell wall forms a septum which divides the cell into two. [7]
Thermodynamic pump testing is a form of pump testing where only the temperature rise, power consumed, and differential pressure need to be measured to find the efficiency of a pump. These measurements are typically made with insertion temperature probes and pressure probes fitted to tapping points on the pump's inlet and outlet. [ 1 ]
These pumps are needed to provide the steep electrochemical gradient that allows Ca 2+ to rush into the cytosol when a stimulus signal opens the Ca 2+ channels in the membrane. The pumps are also necessary to actively pump the Ca 2+ back out of the cytoplasm and return the cell to its pre-signal state. [3]
The cell cycle is the cycle of events in a cell from one cell division to the next. Subcategories. This category has the following 5 subcategories, out of 5 total. ...