3. In the human body, food is transformed into various kinds of energy. The nervous system consists of many cells called neurons. These neurons send electrical signals across the body. This means that in some parts of the human body, the energy transformation is:

Electrical to chemical
Chemical to electrical
Radiant to chemical
Radiant to electrical

The chemical energy

Explanation:

The chemical energy stored in food is a type of potential energy. Therefore, it can be transformed into kinetic energy. This transformation happens during chemical reactions that take place when the body digests food.

hope this helps

Chemical to Electrical

Explanation:

The answer is B, because if you think about it, people always say you need to eat food to get energy, so you would be able to move. This saying comes in use in this question, as the food provides Chemical Energy, and gets transferred to Electrical Energy, to help you move around.

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.