Extracellular matrix ecm - Study guides, Class notes & Summaries

What is the ECM? ANS Extracellular matrix a network of proteins and polysaccharide chains that are secreted by cells What are the two forms of the ECM? What are they each? ANS ECM of connective tissue= fibrous polymers like collagen Basal Lamina= flexible, thin mat of specialized ECM that underlies epithelial cell sheets and tubes What are the two ways that cells are attached in tissue? ANS either to the basal lamina or to the ECM and to each other What are the 4 main types of junct...

Tissues made up of two things - -cells -extracellular matrix (extracellular space) What is the extracellular matrix - -complex network of macromolecules in the extracellular space between cells What is the Extracellular matrix made of? - -polysaccharides and proteins that are made and scripted locally to form meshwork in close association with the cells producing them Where is the Extracellular Matrix plentiful? - -CT What forms the framework of the body? - -CT (bone, skin, tendons, lens ...

Extracellular Matrix (ECM) - The ECM provides structural support to the cell and also plays a role in cell signaling. -Components: • Collagen • Glycoproteins (proteins with an oligosaccharide) • GAGs (long polysaccharide chains with amino sugars) • Proteoglycans (a core protein with one or more GAG chains connected) - Composed mostly of water. All of those proteins, glycoproteins, and proteoglycans are dissolved and assembled within a watery medium and most typically the protein ...

extracellular matrix (ECM) correct answers a substance in which the cells of an animal tissue are embedded; consists of protein and polysaccharides biodiversity correct answers The variety of living things, encompassing genetic diversity, species diversity and ecosystem diversity intermembrane space correct answers one of the two fluid-filled internal compartments of the mitochondrion. The intermembrane space is the narrow region between the inner and outer membranes. cellulose correct ...

The fluidity of a biological membrane goes down when? - Answer-vander wals interaction between membrane lipids are increased Morphology - Answer-form-science phylogeny - Answer-tribe source Members of prokaryotes - Answer-Bacteria and archaea Members of Eukarotes - Answer-Eukarya Do Eukaryotic or prokaryotic cells have a membrane bound nucleus? - Answer-Eukaryotic What does a prokaryotic chromosome look like? - Answer-Single circular chromosome Where does epithilial tissue get its streng...

Name the five types of Cell Adhesion Molecules? Which type enables cells to detect and interact with components of the extracellular matrix? correct answers 1. Cadherins 2. Immunoglobulin Superfamily (IGSF) 3. Selectins 4. Integrins 5. Mucins Integrins allow cells to interact with the surrounding environment or components of the ECM. What are the layers of the epidermis from most superficial to most deep? correct answers Stratum corneum Stratum lucidum Stratum granulosum Stratum spi...

extracellular matrix - serves as physical structure to stabilize cells, molecular barrier against cell migration during infection and metastasis type IV collagenases - breakdown type IV collegen, epithelial-derived cancer cells cannot metastasize until they express these proteinases, Clostridium species which cause gas gangrene also produce these growth factors - important in normal cell proliferation and their mis-regulation can lead to cancer, they are often secreted in the ECM where thy...

Light Microscope - -visible light is passed through a specimen Magnification - -ratio of image to real size Resolution - -image clarity Contrast - -difference in brightness Cell fractionation - -Takes cells apart -separate organelle -Determine function of organelles Prokaryotic Cell - -NO nucleus -DNA is unbound region (nucleoid) Eukaryotic cells - -DNA is in nucleus -membrane bound organelles -larger then prokaryotic cells The Nucleus - -Cell's genes -DNA in chromosomes Nucleolus...

functions of basal ganglia - ️️1. motor control 2. cognition 3. learning 4. fine muscle tuning (suppresses unwanted movement) what are the 4 ion channels - ️️1. voltage - due to membrane potential of both side of the membrane nical - due to deformities 3. thermal - due to temp changes 4. chemical - due to chemical messenger (ligand) 2 regulations of homeostasis - ️️intrinsic - inside of tissue extrinsic - outside of tissue 2 feedbacks of homeostasis - ️️negative - init...

The ECM is primarily composed of --? - Answer-specific ECM glycoproteins cells in tissues are physically connected to neighboring cells and/or ---? - Answer-the extracellular matrix what are some functions of the ECM? - Answer-tensile strength, incompressibility and elasticity what component of the ECM provide it's elasticity? - Answer-elastins what component of the ECM allows incompressibility? - Answer-hydrated GAG fibers (GlucosAminoGlycans) what component of the ECM provides tensile s...