BIOL 235 Chapter Notes - Chapter 3: Lipid Bilayer, Integral Membrane Protein, Extracellular Fluid

53 views20 pages
14 Jan 2020
Department
Course
Professor

Document Summary

Chapter 3 the cellular level of organization. Intro: cells: living structural and functional units enclosed by a membrane, cell division: how all cells are formed, one cell divides into two identical cells, cell biology or cytology: the study of cellular structure and function. The plasma membrane: a flexible yet sturdy barrier that sur- rounds and contains the cytoplasm of a cell, structure: the fluid mosaic model, continuously moving and changing model. Oh group on cholesterol binds to the polar head of phospholipids and glycolipids: about 5% are glycolipids, only in extracellular facing membrane layer. Large molecules (ex. proteins) are too big and can only pass via endocytosis and exocytosis. In facilitated diffusion an integral membrane protein assists a specific substance across the membrane: channel-mediated facilitated diffusion, a solute moves down its concentration gradient through a membrane channel, most membrane channels are ion channels, channels are highly specific.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions