BIOS 1030 Lecture Notes - Lecture 2: Hydrogen Atom, Chemical Bond, Hydrogenation
8 Jan 2018
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Document Summary
Atoms - the smallest unit of all matter. Ions - atoms which are charged, have lost/gained an electron. Ex: ca2+ has lost electrons, it"s a positive ion. Molecules - a group of atoms bonded together. Chemical bond - a linkage between two atoms, occurs because of the sharing/exchange of electrons ph - measures the concentration of positive ions in a solution. An important characteristic of water and thus fluids in our cells and body systems. 0 is most acidic, 14 is most basic. Going from 7 to 0, it is a ten-fold increase of h ions per every whole number. Going from 7 to 14, it is a ten-fold decrease of h ions per every whole number number. 4 macromolecules found in living organisms: (made up of many atoms) Provides long-term energy, stored in our bodies (stored in muscle cells, liver) Subunit: monosaccharides (either single sugar molecules or chain of sugars)
