Cysts are pockets of tissue that can fill with fluid, pus, or hair. on the skin, they often appear as hard bumps, and they are usually caused by an infection or a blocked exocrine gland. most cysts resolve on their own, but some can cause complications.

This large cyst may press up against different nerve endings, causing pain or numbness. If a clogged gland causes it, that gland may not be able to release oil or sweat onto the skin, which is important for regulating temperature and keeping the skin waterproof.

Explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

because photosynthesis could not occur (apex)