<p>Name: ______Date: ______Period: ____</p><p>Chemistry of Life Test Review Sheet</p><p>Multiple Choice – circle the answer and write the letter in the space provided.</p><p>1) The space surrounding the nucleus of an atom contains </p><p>2) The three particles that make up an atom are </p><p>3) Isotopes are atoms of the same element with the same number of protons and a different number of </p><p>4) What makes up a molecule of water (H2O)?</p><p>5) When salt is dissolved in water, water is the</p><p>6) A substance with a pH of 6 is called a(n)</p><p>7) Hydrogen ions, H+, react with hydroxide ions, OH- to form</p><p>8) A solution is a(an) </p><p>9) When salt is dissolved in water, salt is the</p><p>10) A substance that speeds up the rate of a chemical reaction is called a(an)</p><p>11) All organic compounds contain the element</p><p>12) Which are the four organic macromolecules?</p><p>13) An enzyme is a ______, made up of amino acids.</p><p>14) The place on the enzymes that bind to substrates is known as the . 15) Suspensions are mixtures</p><p>16) The two types of nucleic acids are</p><p>17) Examples of lipids are </p><p>18) What is the process that changes one set of chemicals into another set of chemicals?</p><p>19) Solutions that contain concentrations of H+ ions lower than pure water are called </p><p>20) What are the four functions of proteins? a. ______b. ______c. ______d. ______</p><p>21) DNA stores</p><p>22) The most abundant compound in most living things is</p><p>23) When hydrogen and oxygen combine to form water, water would be the </p><p>24) What conditions affects the function of enzymes?</p><p>25) When an enzyme-catalyzed reaction occurs, what leaves the chemical reaction changed?</p><p>Complete this chart with these terms:</p><p>Monomers Amino acids Monosaccharides</p><p>Macromolecules Lipids Nucleic acids Essays – write in complete sentences!</p><p>1) What is the difference between adhesion and cohesion? Include terms capillary action, surface tension, similar molecules, and different molecules.</p><p>______From the Acids & Bases Lab, answer the following questions: 1) What was the independent variable? 2) What was the dependent variable? 3) What did the indicator dyes in the litmus papers and pH paper react to?</p><p>______</p>