Unit 2 Test Part 2 Period 2

Master enzymes & water's unique properties!

1). Draw an enzyme! DRAW an enzymeLABEL the enzyme, substrate, and active site. 2.) Matching Vocabulary Drag from the orange circle to the correct definition. Enzyme helper protein Active site location where enzyme and substrate join Substrate What goes into the reaction 3.) Choose the correct hydrogen bond. Picture A Picture B Picture C 4.) Water does not adhere to which substance? Oil Soap Food dye 5.) Matching Vocabulary Drag the orange circle to the correct definition. Adhesion water molecules sticking to a non-water substance. Cohesion water molecules sticking together Capillary action water being pulled up small tubes. 6.) Sort the correct monomer, function and example to each macromolecule Carbohydrates (3) Monosaccharide Short term energy Bread Lipids (3) Fatty Acids and Glycerols Long Term Energy Butter Nucleic Acids (4) Stores and transmits genetic information nucleotides DNA Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus Protein (4) Amino Acids Muscle Building and Immune System Enzymes Carbon, Hydrogen, Oxygen, and Nitrogen 7.) Drag the orange circle to the correct definition. Density This property of water is what allows fish to survive the winter because ice will FLOAT to the top. Polarity An uneven distribution of charges High Heat Capacity Water can take in A LOT of heat but the temperature will only change a LITTLE. 8.) Draw a Water Molecule Draw A Water Molecule- LABEL the Hydrogen(s) and Oxygen(s)- Label the positive and negative charge 9.) Use the picture ABOVE. DENATURATION = enzyme CHANGES shape . When the enzyme changes shape, it causes the activity (ability) to _ Increase Decrease Stay the same 10.) What TWO things can cause enzymes to DENATURE? (select TWO) pH time water temperature 11.) Amylase works at an optimal (best) pH of 7.0. What would happen if the pH was changed to 2? Enzyme activity would increase Enzyme activity would decrease Enzyme activity would stay the same