AP2TermsOutline[1]

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Across 1. 1.type of compound which has carbon, hydrogen, and oxygen atoms in an approximate 1:2:1 ratio; the most abundant of the four major classes of biomolecules. They fill numerous roles in living things, such as the storage and transport of energy (starch, glycogen) and structural components (cellulose in plants, chitin in animals). 5. formed when one atom transfers electron to a second atom, ionizing both - the resulting electrostatic charge holds two ions formed together 7. the amount of matter that is found in an object (independent of the effect of gravitational effects of other mass (i.e. weight) 9. formed when two or more atoms are joined together by a chemical bond 11. formed by bonding two fatty acid molecules and phosphate-containing molecule to a three-carbon glycerol - major component of cell membranes 14. molecule containing four fused carbon rings, a hydroxyl, and one-more carbon chains; includes substances like cholesterol, testosterone, estrogens, and some other hormones
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16. formed in a reaction between an acid and a base; hydrochloric acid and sodium hydroxide react to form sodium chloride and water. 17. reactivity of atoms is determined by number of electrons needed to empty/fill outermost electron shell; most outer atom shells in living systems are filled with eight electrons. 19. ___ elements are required by living systems in extremely low concentrations but toxic in larger concentrations i.e. arsenic 20. chemical substance that can resist change in pH by accepting or releasing hydrogen ions 21. long biomolecule which consists of chains of nucleotides bonded together; important in transfer of hereditary information; DNA and RNA 24. six most common elements found in living systems; hydrogen, oxygen, nitrogen, phosphorus, sulphur, and carbon 26. any substance which, in an aqueous solution, ionizes- examples include potassium and sodium ions in blood 30. one of 20 different atoms/molecules forming side-chain attached to middle carbon of amino acid; 2. Used to indicate a side chain attached to a specified type of molecule. Matched atoms must not have any connection to the core 32. uncharged particle found in nucleus of atom with a mass of approximatley one atomic mass unit (amu)
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