The following graphic shows the energy curves for the same chemical reaction of A B → AB. A diagram showing the activation energy for a reaction with and without an enzyme over time. The top line begins on the left and reaches the highest peak on the graph for energy used before decreasing over time. The bottom line begins in the same place as the top line on the left but reaches a lower peak for energy used before decreasing over time to the same endpoint as the top line. © G. Andruk 2005 Creative Commons, CC BY-SA 3.0 Which of the following is a correct interpretation of the graphic? The top reaction used an additional energy source. The bottom reaction added more molecules to the products. An inhibitor was removed to slow down the bottom reaction. An enzyme lowered the activation energy in the bottom reaction. Question 4(Multiple Choice Worth 3 points) (01.02 MC) Which of the following statements best describes the structure and function of a carbohydrate? Carbohydrates are large molecules made up of monosaccharides and are used by organisms for energy storage. Carbohydrates are made up of starchy monomers and are used for structure, protection, and reproduction. Carbohydrates are long, winding molecules made up of amino acids and are important in the synthesis of fats and hormones. Carbohydrates are made up of sucrose molecules that are important for transportation and protein synthesis. Question 5(Multiple Choice Worth 3 points) (01.02 MC) What biological macromolecule is made up of monomers like the one shown below? A molecule with the formula C6H12O6. Five carbon atoms and one oxygen atom form a hexagonal ring, with the other atoms bonded to that ring. Fat Carbohydrate Protein Nucleic acid Question 6(Multiple Choice Worth 3 points) (01.02 MC) What biological macromolecule is made up of monomers like the one shown below? A monomer made up of a nitrogenous base, a five carbon sugar, and a phosphate group bonded together. Carbohydrate Nucleic acid Fat Protein