Physiologic basis of EMG/NCS or what constitutes a waveform?
... current spreads longitudinally down axon • Minimal leak between nodes, reduced by 5000 vs. unmyelinated nerve – Charge separation, reduced protein leak channels & increased membrane resistance account for this ...
... current spreads longitudinally down axon • Minimal leak between nodes, reduced by 5000 vs. unmyelinated nerve – Charge separation, reduced protein leak channels & increased membrane resistance account for this ...
Lecture 2 - Microscopy and Cell Structure S11 2 slides per page
... – Serves as a selectively permeable barrier • Barrier between cell and external environment • Permits passage of only certain molecules, such as water, small hydrophobic molecules and gases ...
... – Serves as a selectively permeable barrier • Barrier between cell and external environment • Permits passage of only certain molecules, such as water, small hydrophobic molecules and gases ...
Structure of the plasma membrane T2T
... Each cell of your body is encased in a tiny bubble of membrane, one which has approximately the consistency of salad oil. This might seem like an awfully fragile boundary to place between a cell and the rest of the world, but the plasma membrane is actually very well-suited to its job. It not only d ...
... Each cell of your body is encased in a tiny bubble of membrane, one which has approximately the consistency of salad oil. This might seem like an awfully fragile boundary to place between a cell and the rest of the world, but the plasma membrane is actually very well-suited to its job. It not only d ...
Slide 1
... Overview of mechanisms underlying the main mitochondrial peripheral neuropathies. (A) MFN2 is located in the outer mitochondrial membrane and interacts with Miro and Milton proteins, which belong to the molecular complex that links mitochondria to kinesin (KHC) motors. (B) MFN2 participates in bring ...
... Overview of mechanisms underlying the main mitochondrial peripheral neuropathies. (A) MFN2 is located in the outer mitochondrial membrane and interacts with Miro and Milton proteins, which belong to the molecular complex that links mitochondria to kinesin (KHC) motors. (B) MFN2 participates in bring ...
Lecture 4
... These proteins are embedded in the lipid bilayer of the cell membrane and act as ion channels for the transport of molecules and ions in and out of the cell. Since the proteins interact with the non polar lipid bilayers, they have hydrophobic amino acid residues on the surface. These proteins do not ...
... These proteins are embedded in the lipid bilayer of the cell membrane and act as ion channels for the transport of molecules and ions in and out of the cell. Since the proteins interact with the non polar lipid bilayers, they have hydrophobic amino acid residues on the surface. These proteins do not ...
Active and Passive Transport
... Sodium-Potassium Pump- a membrane protein that plays a role in transporting 3 Na+ outside and 2 K+ inside as in axon, while utilizing ATP. https://sp.yimg.com/xj/th?id=OIP.Mf69dc0c6bdeb6cbb5fb11e057650443co0&pid=15.1 &P=0&w=288&h=163 Proton Pump- during photosynthesis, a proton gradient is establish ...
... Sodium-Potassium Pump- a membrane protein that plays a role in transporting 3 Na+ outside and 2 K+ inside as in axon, while utilizing ATP. https://sp.yimg.com/xj/th?id=OIP.Mf69dc0c6bdeb6cbb5fb11e057650443co0&pid=15.1 &P=0&w=288&h=163 Proton Pump- during photosynthesis, a proton gradient is establish ...
Lipids are non
... Sphingolipids tend to separate into sphingolipid-rich membrane microdomains, called lipid rafts. This has been attributed to the close packing of sphingolipids, with their fully saturated hydrocarbon tails. ...
... Sphingolipids tend to separate into sphingolipid-rich membrane microdomains, called lipid rafts. This has been attributed to the close packing of sphingolipids, with their fully saturated hydrocarbon tails. ...
Cell structure Part 1
... the outside and inside of the membrane. This allows the integral proteins to act as transport channels. Fluid mosaic modelUsed to describe the cell membrane. Phospholipidshas a polar and nonpolar end. The polar end likes water and the nonpolar end hates water. ...
... the outside and inside of the membrane. This allows the integral proteins to act as transport channels. Fluid mosaic modelUsed to describe the cell membrane. Phospholipidshas a polar and nonpolar end. The polar end likes water and the nonpolar end hates water. ...
02 Transport Across the Cell Membrane
... • Used to move substances in or out of a cell AGAINST the concentration gradient • Requires ENERGY in order to move substances across the membrane – Energy is used to open a channel or a gate in the protein of the membrane to assist in the binding of a substance to the protein – Energy can also be u ...
... • Used to move substances in or out of a cell AGAINST the concentration gradient • Requires ENERGY in order to move substances across the membrane – Energy is used to open a channel or a gate in the protein of the membrane to assist in the binding of a substance to the protein – Energy can also be u ...
Topic 21: COMMUNICATION BETWEEN CELLS
... negatively charged (anions) organic molecules which are not present on the outside. 1. membrane is more permeable to K+ than Na+ 2. K+ flows out down its concentration gradient 3. As it flows out, the inside becomes negatively charged because of anions left behind 4. The Na+-K+ ATPase (pump) maintai ...
... negatively charged (anions) organic molecules which are not present on the outside. 1. membrane is more permeable to K+ than Na+ 2. K+ flows out down its concentration gradient 3. As it flows out, the inside becomes negatively charged because of anions left behind 4. The Na+-K+ ATPase (pump) maintai ...
(Western) Blotting
... Blocking prevents non-specific interactions After blocking, the membrane is incubated in primary antibody ...
... Blocking prevents non-specific interactions After blocking, the membrane is incubated in primary antibody ...
The Three Major Parts of the Cell
... • Because the tail is afraid of H2O and there is H2O surrounding your cells…. • Extracellular fluid outside each cell and • The cytoplasm (made of water and various molecules) in each cell • How do the phospholipid molecules line up? ...
... • Because the tail is afraid of H2O and there is H2O surrounding your cells…. • Extracellular fluid outside each cell and • The cytoplasm (made of water and various molecules) in each cell • How do the phospholipid molecules line up? ...
pass through the cell membrane
... through a selectively permeable membrane from an area of higher concentration of water to an area of lower concentration of water. It continues until equilibrium is reached. ...
... through a selectively permeable membrane from an area of higher concentration of water to an area of lower concentration of water. It continues until equilibrium is reached. ...
Cell Membrane Notes
... Slide one: cell membrane vs. cell wall Cell Membranes _________________ what comes into and out of cells Cell Walls provide _____________________________________ for the cell ...
... Slide one: cell membrane vs. cell wall Cell Membranes _________________ what comes into and out of cells Cell Walls provide _____________________________________ for the cell ...
PDF File
... the TOP-PRED II 1.1 software packages (23) suggested that it might have 12 certain and 5 putative transmembrane segments (TMS). Some other software predicted the presence of 11 TMS. The topology of cytoplasmic membrane proteins in Gramnegative bacteria was often studied by the phoA gene fusion metho ...
... the TOP-PRED II 1.1 software packages (23) suggested that it might have 12 certain and 5 putative transmembrane segments (TMS). Some other software predicted the presence of 11 TMS. The topology of cytoplasmic membrane proteins in Gramnegative bacteria was often studied by the phoA gene fusion metho ...
Size-dependent Shifts in the Alarm Response of Creek Chub
... 30:1-8). Interestingly, a ~30 KDa band was also detected. This is consistent with the molecular weight of the G-protein with which the V2R interacts (Hansen et al. 2003, Journal of Neuroscience 23(28): 9328-9339). Therefore we have concluded that this receptor is present in the juvenile creek chub. ...
... 30:1-8). Interestingly, a ~30 KDa band was also detected. This is consistent with the molecular weight of the G-protein with which the V2R interacts (Hansen et al. 2003, Journal of Neuroscience 23(28): 9328-9339). Therefore we have concluded that this receptor is present in the juvenile creek chub. ...
Structural comparison of three viral fusion proteins
... vaccinia has become more clearly defined [l]. Originally thought to be concerned in the process whereby viral particles are attached to the target cell it has subsequently been shown to assist in the passage outwards from the cell, where it is essential for the envelopment of intracellular virions b ...
... vaccinia has become more clearly defined [l]. Originally thought to be concerned in the process whereby viral particles are attached to the target cell it has subsequently been shown to assist in the passage outwards from the cell, where it is essential for the envelopment of intracellular virions b ...
Microanatomy-Cytology (cells)
... – Integral proteins-span across the membrane – Peripheral proteins-on one side of the membrane ...
... – Integral proteins-span across the membrane – Peripheral proteins-on one side of the membrane ...
Document
... ribosomes in the cytosol and by ribosomes located within the mitochondria and chloroplasts themselves. Contain ribosomes and some DNA that programs a small portion of their own protein synthesis, though most of their proteins are synthesized in the cytosol programmed by ...
... ribosomes in the cytosol and by ribosomes located within the mitochondria and chloroplasts themselves. Contain ribosomes and some DNA that programs a small portion of their own protein synthesis, though most of their proteins are synthesized in the cytosol programmed by ...
cell membrane
... water inside and outside the cell • The nonpolar tails, repelled by water, make up the interior of the lipid bilayer. • The polar heads are attracted to the water, so they point toward the surfaces of the lipid bilayer. – One layer of polar heads faces the cytoplasm, while the other layer is in cont ...
... water inside and outside the cell • The nonpolar tails, repelled by water, make up the interior of the lipid bilayer. • The polar heads are attracted to the water, so they point toward the surfaces of the lipid bilayer. – One layer of polar heads faces the cytoplasm, while the other layer is in cont ...
Membrane trafficking in Drosophila wing and eye development
... that are thought to form the minimal machinery required for fusion of transport vesicles with target membranes.13 The three proteins are from the VAMP/Synaptobrevin, Syntaxin and SNAP-25 families. Together they can form a very stable complex that consists of four parallel alpha-helices.14, 15 It is ...
... that are thought to form the minimal machinery required for fusion of transport vesicles with target membranes.13 The three proteins are from the VAMP/Synaptobrevin, Syntaxin and SNAP-25 families. Together they can form a very stable complex that consists of four parallel alpha-helices.14, 15 It is ...
plasma membrane
... group and two hydrocarbon tails. An example of a phospholipid is shown in this figure (right). The top region beginning with the NH3 is the polar group. It is connected by glycerol to two fatty acid tails. One of the tails is a straight chain fatty acid (saturated). The other has a kink in the tail ...
... group and two hydrocarbon tails. An example of a phospholipid is shown in this figure (right). The top region beginning with the NH3 is the polar group. It is connected by glycerol to two fatty acid tails. One of the tails is a straight chain fatty acid (saturated). The other has a kink in the tail ...
Unit 3 - Madison Public Schools
... Contains water, salt, sugars and can contain enzymes. The membrane surrounding the large central vacuole is called the tonoplast. The large central vacuole helps plants maintain their tonicity – water balance. ...
... Contains water, salt, sugars and can contain enzymes. The membrane surrounding the large central vacuole is called the tonoplast. The large central vacuole helps plants maintain their tonicity – water balance. ...
Slide 1
... -binds to a carrier protein on the plasma membrane -transported by the carrier protein -no energy required – transported down the concentration gradient by the carrier protein -but there is a limit to the amount of facilitated diffusion cells can undergo and it has to do with the number of carrier p ...
... -binds to a carrier protein on the plasma membrane -transported by the carrier protein -no energy required – transported down the concentration gradient by the carrier protein -but there is a limit to the amount of facilitated diffusion cells can undergo and it has to do with the number of carrier p ...
SNARE (protein)
SNARE proteins (an acronym derived from ""SNAP (Soluble NSF Attachment Protein) REceptor"") are a large protein superfamily consisting of more than 60 members in yeast and mammalian cells. The primary role of SNARE proteins is to mediate vesicle fusion, that is, the fusion of vesicles with their target membrane bound compartments (such as a lysosome). The best studied SNAREs are those that mediate docking of synaptic vesicles with the presynaptic membrane in neurons. These SNAREs are the targets of the bacterial neurotoxins responsible for botulism and tetanus.