The model shows the relation between the reaction velocity of an enzyme and temperature. Which of these is a description of the relation? Select one:
a. Reaction velocity always increases with an increase in temperature.
b. Reaction velocity remains constant with an increase in temperature.
c. Reaction velocity increases up to a certain temperature before decreasing.
d. Reaction velocity decreases with an increase in temperature.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

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.