LIFE SCIENCE

Detailed explanation-1: -Collisions between substrate molecules and the active site occur because of random movements of both substrate and enzyme. Successful collisions are ones in which the substrate and active site are correctly aligned to allow binding to take place.

Detailed explanation-2: -As the temperature and therefore kinetic energy of the molecules increases, the enzymes and substrates will collide more often which results in an increased chance of a successful collision between the enzymes active site and the substrate.