BIOL 1000 Lecture Notes - Lecture 5: Plasmodesma, Acetyl Group, Choline
Document Summary
Intercellular signalling: essential for every single process. Long distance signalling in the body hormones response respond differently: not going to get the same outcome estrogen, testerone all acting different, single cell as soon as becomes scarce becomes aggregate. Cell-cell communication: following concentration gradient receptor = target cell receptors but it has the receptors. Cell communication signalling and target cells: cell 3 is the target cell signalling cell, can have thousands of target cells. Transcription control and membrane bound receptors response element (promoter region: control gene expression (transcription, signalling molecule is going to diffuse through membrane and intra cellular receptor) cascade of event. Steroid hormones receptor: go through nuclear pore and into nucleus gene expression, receptors can be associated with the membrane. Amplifying the response: tiny amount of chemical messenger and get a large response number of molecules involved, activates the molecules.
