MCELLBI 32 Lecture Notes - Lecture 6: Hydrophile, Membrane Transport Protein, Protein Kinase A

• School: Berkeley
• Department: Molecular And Cell Biology
• Course: MCELLBI 32
• Professor: Robin Ball

Document Summary

->50 year old female admitted to hospital due to severe generalized muscle weakness, fatigue and high fever. ->consumes over 10 cups strong coffee a day. ->consuming all the caffeine reduced her potassium levels. ->cells communicate with each other through intercellular signaling. ->some cells are directly connected through gap junctions. ->ligands are the right shape for their specific recpetor. ->paracrine signaling: one cell release a molecule, sends signal to neighboring cell endocrine system releases hormones into the blood, which carries the hormones throughout the body. ->secretory cell (endocrine cell)-->releases hormone-->hormone travels through blood-->goes to receptor on target cell. ->neurotransmitters-->neurons can span a long length and release neurotransmitters onto other cells. ->carrier proteins carry steroid hormones through the blood plasma (to avoid from them clumping together. ->steroid hormone ad receptor goes into nucleus, binds to dna, and modifies gene expression. ->cells that release steroid hormones are different from cells that release peptide hormones.