BISC207 Lecture Notes - Lecture 15: Bubble Wrap, Cell Adhesion, Cadherin

• School: University of Delaware
• Department: Biological Sciences
• Course: BISC207
• Professor: Olabisi Oyenike

Document Summary

Like the wood/steel rods in a building when they are first making it. Proteoglycan: putty-like substance (like the cement in between the rods of the building) Integrins: membrane proteins found on the cell surface. They break apart and they can just piece back together. Cadherin proteins: proteins that bind to other proteins that are the same as it, only stick if they are like cells. Sponges use cadherin proteins so that they can put themselves back together. Cells must communicate and cooperate with each other. Endocrine: signaling by means of molecules traveling through the bloodstream (puberty) Paracrine: involves 2 cells that are close to each other. Autocrine: signaling cell and responding cell are one and the same. Growth factors: bind to cells and promote growth and division (cancer cells) Cytotoxic killer cells in the immune system. Signaling molecule binds to receptor (only starts when there is binding!!) Activated receptor stimulates sequence of changes (signal transduction pathway)