What are the differences between photosystem l and photosystem ll?

in ps1, reaction centre is p700

in ps2, reaction centre is p680

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle