BIO 1130 Lecture Notes - Lecture 12: Gap Junction, Cell Junction, Proteoglycan
cudapuca and 38677 others unlocked
25
BIO 1130 Full Course Notes
Verified Note
25 documents
Document Summary
Keratin is the most common protein: eukaryotic flagella. Cilia is in the trachea that moves water across the surface. Cilia is like a wind shield wiper. Microtubules are very important for the movement of cilia and flagella. Dynein links microtubules fibers together: extra cellular matrix (ecm) Collagen (protein)- accounts for 40% of the protein in the body. Collagen is embedded in the proteoglycan complex. When carbs are glycognated, and mixed with proteins they are called proteoglycans. Proteins-integrans- proteins that are embedded in the plasma membrane. Extracellular membrane is attached to the cell via the extracellular fibers. Cytoskeleton is connected to the microfilaments inside the cell: cell junctions (animal cells) Tight junctions- water tight cells between adjacent cells. Provide a watertight barrier to prevent water loss from the body. Connected to the cytoskeleton network on the inside of the cell. Pectin- very sticky component- very important for holding things together: plasmodesmata. When cells divide, the er will get trapped.