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### 45 Cards in this Set

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 what's an aqueous solution water based, resembles dilute seawater, na+, k+, cl- highly soluble molecules hydrophilic, polar or ionic molecules with low solubility hydrophobic, non-polar, lipids how do lipids dissolve in body fluids combine with hydrophlic molecule to carry them into solution concentration of a solution = amount of solute per mL or L of solution what's a mole (2) quantity: 6.02 x 10(23rd) of something how much does a mole weigh (2) molecular weight in grams = gram molecular weight what is molarity (4 concepts) solution concentration = @ of moles of solute in 1 L of solution = mol/L = M how are solute concentrations usually expressed (3) millimoles per L = mmol/L = mM how do you determine molecular weight atomic mass (must look up) x # of atoms for each element in molecule what's the difference of molecular weight and gram molecular weight numbers same but amu vs. g where are the answers to the running problem ask dr. chu how are solute concentrations of ions expressed eq/L (equivalents/Liter) OR meq/L (milliequivalent = 1/1000 of eq)= molarity of ion x # of charges ion carries what is percent solution and when is it used parts of solute per 100 parts of total solution; labs/rx how is percent solution used for liquids volume/volume how is percent solution used for solids weight/volume what is the common way of expressing concentrations of drugs &/or chemicals in body mg/dL (1/1000 gram per 1/10 Liter) what's a hydrogen ion H+ = 1 proton where do hydrogen ions come from h2o separated into oh- and h+ OR ionized molecule that dissolves in water and releases H+ ions (ACID) what is an acid molecule that when dissolved in water releases an H+ what do hydrogen ions do? interfere with hydrogen bonding and van der waals forces --> changes shape of molecule --> molecule cannot function what are bases? molecules that pick up the free h+ what is pH power of hydrogen = inversely proportional to H+ concentration in body fluids (higher h+ concentration = lower pH) 7=neutral. >7=alkaline. <7=acidic what is the normal pH of human blood? what are fatal levels? 7.35 - 7.45 (slightly alkalaine.) below 7.0 and above 7.7 are fatal what is a buffer molecule that changes pH. usually anions looking for h+ to bind to --> less h+ floating around --> raises pH what's the most important buffer in body? bicarb = hco3- =combines with free h+ what are organic molecules molecules containing carbon what are organic molecules within living organisms? biomolecules what are the 4 kinds of biomolecules proteins, fats, carbs, nucleotides what are proteins, fats, and carbs for? used by the body for energy, building blocks for cellular components what are nucleotides; name some structural components of genetic material; compounds that carry energy or regulate metabolism. dna & rna, atp and cAMP respectively which are the most abundant biomolecules carbs what is the chemical structure of a carb (ch2o)n = carbon + water what is the suffix for any simple sugar -ose what are the 2 kinds of simple sugars monosaccharides and disaccharides what are monosaccharides one sugar; building blocks of complex carbs; 5 or 6 carbons name 4 monosaccharides ribose, glucose (dextrose,) fructose, galactose how is a disaccharide molecule formed 2 monosaccharides bonding name 3 disaccharides maltose, lactose, sucrose what are more than 2 monosaccharides bound together (3) polysaccharides = complex carbohydrates = glucose polymers what is a large molecule made of repeating units called polymer all living cells store ______ for energy (2) glucose (as a polysaccharide) what is the storage polysaccharide in animal cells that is found in all body tissues called glycogen what are the 2 polysaccharides that plants make? starch for storage. cellulose for structure. which polysaccharide of plants can human digest and which is undigestible? we can digest starch. we cannot digest cellulose (FIBER)