<span>Catalysts speed up reactions by opening up pathways that require less energy. What this means is that they reduce the amount of energy needed for a reaction to take place so if it needs less energy it takes less time to react. The catalyst does not alter the reaction in any other way other than by altering its speed.</span>
The mitosis stops when chromosomes are at the maximum condenstation, it is practically metaphase but the chromosomes are not attached to the spindles so they don't form the equatorial plate.
