What do the Bane of Arthropods and Smite enchantments do?

Bane of Arthropods increases damage done by a sword by 2.5 points (each level adds 2.5 points of damage), and also applies slowness IV to the target for 1-3.5 seconds (depending on the level). Bane of Arthropods affects the following mobs: spiders, cave spiders, silverfish, and endermites. The max level for Bane of Arthropods is V. Smite increases damage done by a sword by 2.5 points (each level adds 2.5 points of damage). Smite affects the following mobs: skeletons, zombies, the Wither, wither skeletons, and zombie pigmen. The max level for Smite is V.