[BIOL 1115] - Final Exam Guide - Everything you need to know! (69 pages long)

• School: Northeastern University
• Department: Biology
• Course: BIOL 1115
• Professor: Terri Lynn Kanner

Document Summary

Homeostasis- tendency to maintain equilibrium in order for physiological processes to occur. Have no membrane bound organelles and usually a flagella. Bacteria: prokaryotic, most are beneficial to humans, bacterial quorum sensing: production/release of chemical signals to communicate with other bacteria. Archaea: prokaryotic, live in extreme environments. Eukarya: eukaryotic (usually multicellular, animalia, protista, fungi. Binomial nomenclature: scientific species name, first word is genus, second is species. See figure 1. 11 for list of taxonomic groups. Molecule- two or more atoms chemically bonded together. Amphiphatic- has hydrophilic and hydrophobic regions (ie. phospholipids) Atoms: smallest unit of matter, made of protons and electrons. Molecule: compound- two or more different chemically bonded atoms, molecule- two or more bonded atoms. Valence shell- outermost orbital that interacts w/other atoms. Octet rule- atoms seek stability with full valence shells. Electronegativity- tendency of an element to gain electrons. Have different number of neutrons than element. Atomic mass is an average of all isotopes.