biology week 6 notes
biology week 6 notes bio 1305
Popular in mod concepts of bioscience
verified elite notetaker
Popular in Biology
This 3 page Class Notes was uploaded by Gabby Scheck on Tuesday October 4, 2016. The Class Notes belongs to bio 1305 at Baylor University taught by Walter Holmes in Fall 2016. Since its upload, it has received 14 views. For similar materials see mod concepts of bioscience in Biology at Baylor University.
Reviews for biology week 6 notes
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 10/04/16
Holmes 1305 Week 6 notes Chapter 7 Membranes are: o not barriers o selective o process information o energy transformation o organize reactions membranes are dynamic membrane components o phospholipids o oligosaccharides o cholesterol o peripheral proteins steroids are lipids and only found in animal cell membranes plants do not have cholesterol factors that control diffusion o temp o size o medium o concentration osmosis o water movement through a semipermeable membrane o hypertonic- >solute, <solvent shrivel RBC and cause plasmolysis o hypotonic- <solute, >solvent swell and burst RBC, turgid cells comparison b/w solute and solvent amounts transport o Passive- no extra energy required Protein channel Aquaporin Gated channel o Active- requires extra energy (ATP) Proton pump Sodium potassium pump Cotranspotration- two things transported (h+ and sucrose) Primary active transport- Ex. NaK pump 2 ndmessenger- signal transduction pathway- gets signal through cell without putting the hormone in the cell cAMP – 2 ndmessenger method of bypassing the cell membrane o bulk transport endocytosis –move in phagocytosis- eat pinocytosis-drinking exocytosis- move out receptor mediated endocytosis cell replication and division o Fission- prokaryote o Mitosis- nuclear division o Meiosis- sex cell formation o The cell cycle consists of 3 phases Interphase Not a part of mitosis G1- gap 1, growth S – synthesis, growth and replication of DNA Mitosis prophase metaphase anaphase telophase cytokinesis- cell division cytokinesis is not always necessary; the can be multinucleated cyclosis- cytoplasmic streaming o structure of nucleus karolymph (sap) chromatin nucleolus o chromosome structure chromosome number chromatid arm (p+q) centromere landmark bond telomere o winding of DNA (reference above picture)
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'