BIOLOGY 1P03 Study Guide - Lipid Bilayer, Cell Membrane, Nuclear Membrane

287 views21 pages

Document Summary

Chapter one an introduction to life on earth. Cells tissues organs organ systems population species community. Scientific inquiry is based on the assumption that people perceive natural events in similar ways unique to science. Homeostasis: organisms must regulate amount of water and salt and maintain an appropriate temperature. C, o, h, n makes up 95% of living things || ca, p, k, s, na, cl, mg + trace elements reaming 4% Atomic nucleus: contains positively charged protons and uncharged neutrons negatively charged neutrons circle atom. Atomic mass = total mass of protons and neutrons. Ionic bonds: (hydrophilic) electrical attraction between positively and negatively charged ions broken apart by water. Covalent bonds: the sharing of electrons between uncharged atoms. If the electrons are shared roughly equally, poles are uncharged = non polar (hydrophobic) If the shared electrons spend more time near one of the atoms, one pole is slightly negative while the other is slightly negative = polar (hydrophobic)

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

Related Documents

Related Questions