Descriptions of enzyme mechanisms often contain the terms intermediate, transition state, and transition state analogue. The terms intermediate and transition state both describe chemical species along the reaction pathway, but there are important distinctions between the two. Transition state analogues are often used in enzyme mechanism studies. Match each phrase to the term that it describes.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.