Articles > Protein Activity and Cellular Metabolism – Quiz Protein Activity and Cellular Metabolism – Quiz Quiz Choose the best answer. 1. The strength of ligand-protein binding Saturation Affinity Allosteric modulation Covalent modulation 2. Which of the following factors influence rates of chemical reactions? Temperature and catalyst Activation energy Reactant concentration All of the above 3. A substance that binds to the enzyme to activate it cofactor another enzyme nucleic acid ribosome 4. Which of the following is NOT true about ATP? It is an energy storing molecule. It is the primary molecule to which energy is transferred during the breakdown of fuel molecules, carbohydrates, and fats It is hydrolyzed to release energy for use by the energy-requiring processes in cells It can fuel active transport across membranes. 5. Which of the following is TRUE about essential nutrients? Essential nutrients are substances that are not required by the body. Essential nutrients are substances that can be synthesized readily and adequately by the body. Water, linoleic, and linolenic acids are nutrients that are not essential. Vitamins are a group of essential nutrients required in small amounts. Send Your Results (Optional) Your Name To Email Time is Up!