PPT-CELL JUNCTION

CELL JUNCTIONS In certain tissues the membranes of adjacent cells may join and form a junction called a cell junction These are specialized areas of the cell membrane that provide contact between the cells. Delta Lodging is full service lodging facility located in Delta Junction, Alaska that is dedicated to providing short and long term guests with excellent service and accommodations while they are working in the Delta Junction/Fort Greely area. We are committed to maintaining the cleanest conditions, providing the best service and supplying the flexibility to meet every customer’s needs. . by Dr. . Vani. Gupta . . Definition and Classification of cell junction. Cell junction is the connection between the neighbouring cells or the contact between the cell and extracellular matrix.. By Becky . The Cell. Cytology. is the study of the structure and functions of cells.. The cell was first discovered by Robert Hooke while viewing a dried cork.. The cells have been researched for 175 years.. Surface markers . Structure . . Variable, integral or glycolipids . In plasma membrane.. Function . Identify the cell . Example . MHC complexes, blood groups, antibodies . Surface markers. Structure: Variable, integral proteins or glycolipids in plasma membrane. Function: Identify the cell. Example: MHC complexes, blood groups, antibodies. Septate junctions/tight junctions. Neuromuscular junction. Neuromuscular junction :. the synapse between motor neuron and muscle . fibre. Motor neurons :. are the nerves that innervate (power) muscle . fibres. . Motor unit : . single motor neuron and the muscle . Downloaded from http://rupress.org/jcb/article-pdf/17/2/375/1401642/375.pdf by guest on 29 October 2022 Downloaded from http://rupress.org/jcb/article-pdf/17/2/375/1401642/375.pdf by guest on 29 Octob Lecture-5. Types of Semiconductor junctions. ALL PV cells comprise of junctions between (different) materials of different doping.. p-n homojunction . : fabricated in the same semiconductor material, such as c-Si. . 1. Recap. Three important phenomena occurs during formation of . pn. junction: Diffusion, Formation of Space charge and Drift.. Movement of electrons from n-side to p-side (n>p) and the movement of holes from p-side to n-side is called (p>n) “. Mobility is a measure of the ability of an electron or a hole to get around inside a semiconductor. Scattering events lower mobility. As the temperature of a semiconductor increases, there will be more and more lattice vibrations.. Wisam. J. Aziz. Solid state physics. . Lecture (4). A . p-n junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor.. Zero Biased Junction Diode. When . a diode is connected in a . Zero Bias. condition, no external potential energy is applied to the PN junction. However, if the diodes terminals are shorted together, a few holes (majority carriers) in the P-type material with enough energy to overcome the potential barrier will move across the junction against this barrier potential. This is known as the . Mrs. . Akula. . sowjanya. ,. Assistant professor,. M. Pharmacy (. Ph.D. ),. Department of pharmacology,. MLRIP,. Hyderabad. Department of pharmacology, MLRIP. Cell junctions. Course code (MBBS) . : Tissues 1. Course code (BMS) . : BCT-L4 . Tissues 1: Cellular Organisation of Tissues. Dr Peter Clark, NHLI, SAFB, SK. Multicellular organisms are made up of a wide variety of different cell types..