Navigation Links
Channel in Biological Definition

Electrophysiology

... measure the current flowing through a single ion channel and study its behavior. There are different ... Advantages: Single channels can be recorded and channel properties are not changed. Disadvantages: ... can be changed. Disadvantages: Risk that channel properties are changed. Perforated patch. ...

Ion channel

... links Basic features An ion channel is an integral membrane protein or more ... more or less indiscriminately, the archetypal channel pore is just one or two atoms wide at its ... bees, sea snails and others) work by plugging ion channel pores. But ion channels figure in a wide variety ...

Signal transduction

... are ion channels A ligand-activated ion channel will recognize its ligand, and then undergo a ... on change of transmembrane potential An ion channel can also open when the receptor is activated by a ... of the membrane. If such a change occurs, the ion channel of the receptor will open and let ions pass ...

Active transport

... An example is the glucose symporter, which cotransports two sodiums for every molecule of glucose it imports into the cell. See also Ion channel ...

Bacterial conjugation

... seem to be the structures through which the actual exchange of DNA takes place; rather, some proteins coded in the tra or trb loci seem to open a channel between the bacteria. The transfer of DNA always runs from the F-positive towards the F-negative bacterium. If the F-plasmid is free, a nick ...

Biophysics

... slicing) as well as theoretically (computer models), membrane permitivity, gene therapy, understanding tumors. Pharmacology and physiology - channel biology, biomolecular interactions, cellular membranes, polyketides. Physics - biomolecular free energy, biomolecular structures and dynamics, ...

Cell membrane

... (non polar) and small polar molecules, or facilitated diffusion of polar and ionic molecules, which relies on a transport protein to provide a channel or bind to specific molecules. This spontaneous process decreases free energy, and increases entropy in a system. Unlike active transport, this ...

Intermembrane space

... region between the inner membrane and the outer membrane of a mitochondrion or a chloroplast . Its main function is nucleotide phosphorylation . channel proteins called porins in the outer membrane allow free movement of ions and small molecules into the intermembrane space. This means that it ...

Mitochondrion

... membranes . The outer mitochondrial membrane contains numerous integral proteins called porins , which contain a relatively large internal channel (about 2-3 nm ) and allow ions and small molecules to move in and out of the mitochondrion. Large molecules, however, cannot traverse the outer ...

Mitochondrion

... membranes . The outer mitochondrial membrane contains numerous integral proteins called porins , which contain a relatively large internal channel (about 2-3 nm ) and allow ions and small molecules to move in and out of the mitochondrion. Large molecules, however, cannot traverse the outer ...

Cell membrane

... (non polar) and small polar molecules, or facilitated diffusion of polar and ionic molecules, which relies on a transport protein to provide a channel or bind to specific molecules. This spontaneous process decreases free energy, and increases entropy in a system. Unlike active transport, this ...

Semen

... of semen (mucus and texturizing proteins) serve to increase the mobility of sperm cells in the vagina and cervix by creating a less viscous channel for the sperm cells to swim though, and preventing their diffusion out of the semen. Prostaglandin hormones are involved in supressing an immune ...

Synapse

... currents, or inhibitory in the case of hyperpolarizing currents. Whether a synapse is excitatory or inhibitory depends on what type(s) of ion channel conduct the post-synaptic current, which in turn is a function of the type of receptors and neurotransmitter employed at the synapse. Synaptic ...

Transmembrane receptor

... receptors, such as the nicotinic acetylcholine receptor , the transmembrane domain forms a protein-lined pore through the membrane, or ion channel . Upon activation of an extracellular domain by binding of the appropriate ligand, the pore becomes accessible to ions, which then pass through. In ...
Other Contents
(Date:7/11/2014)... relationships with other group members to reduce aggression and ... the strategy for grooming activities shows a certain pattern ... the scientific journal Biology Letters . , Grooming ... practiced without ulterior motives. To be groomed has hygienic ... grooming another individual can provide access to infants, mating ...
(Date:7/11/2014)... 2014 Researchers have pioneered a revolutionary new ... technology, called Virtual Finger, allows scientists to move ... and synapses using the flat surface of their ... imaging studies orders of magnitude more efficient, saving ... across many areas of experimental biology. The software ...
(Date:7/11/2014)... the hippocampus, the marginal division of the striatum ... is the impact degree of substance P in ... function? Yan Yu and his team, College of ... immunofluorescence staining, that substance P receptor, neurokinin 1 ... marginal division of normal rats. Unilateral or bilateral ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
(Date:7/14/2014)... 14, 2014 According to the Boost Your Bust ... for women who want to learn how to increase the size ... consists of 7 chapters including:, , Chapter 1 ... Chapter 2 – How Natural Breast Enlargement Works , ... Look Bigger , Chapter 4 – The Groundwork , ...
(Date:7/14/2014)... 2014 Reha Technology today announced ... portable and full-featured upper extremity robotic trainer that ... interactive games and challenges in a lightweight and ... , Armotion combines a variety of ... maximize the therapy effect for patients with severe ...
(Date:7/14/2014)... 2014 TherapySites, the ... health professionals, announced today its affiliation with the ... (LPCANC). This new relationship allows TherapySites to ... LPCANC members, adding exclusive benefits and promotional offers. ... been dedicated to providing online marketing solutions specifically ...
(Date:7/14/2014)... Summer is the best season of the year for many. ... other outdoor adventures. The promotional product experts at 4AllPromos ... summer long. The promo product gurus at 4AllPromos have put ... products everyone must have on hand this summer. , ... helps protect skin from harmful UV rays produced by ...
(Date:7/14/2014)... July 14, 2014 Cadeon Associates ... Turning Information into Money,” today announced that it ... global program that helps partners resell, deploy, and ... Spotfire® analytics platform. TIBCO Software Inc. is a ... including TIBCO Spotfire analytics, providing businesses the ability ...
Breaking Medicine News(10 mins):Health News:Boost Your Bust Book Review Exposes Jenny Bolton's Breast Enhancement Guide – Vkool.com 2Health News:Boost Your Bust Book Review Exposes Jenny Bolton's Breast Enhancement Guide – Vkool.com 3Health News:Reha Technology Launches the Armotion™, a Device for the Rehabilitation of the Upper Extremity 2Health News:TherapySites Partners With the Licensed Professional Counselors Association of North Carolina to Make Online Marketing Available to All Therapists 2Health News:Why These Three Summer Essentials from 4AllPromos Can Improve Summer 2Health News:Cadeon Associates Inc. Joins TIBCO Spotfire Partner Network 2Health News:Cadeon Associates Inc. Joins TIBCO Spotfire Partner Network 3
Other TagsOther Tags