Jen and jack are seated in the same row in an airplane but across the aisle from each other. if the information they exchange across the aisle represents the neural impulse between neurons, and jen and jack represent the neurons, the aisle most likely represents the

The aisle most likely represents the synapse.

Explanation:

Neurons communicate to each other at synapses. Synapses are junctions or connections in which "information" (electrical or chemical signal) travels from one neuron to the other.

In this scenario, Jen would illustrate a presynaptic neuron; while Jack would illustrate a postsynaptic neuron, while the aisle represents a synapse through which they are transmitting information between each other.

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.