If a diet does not provide adequate carbohydrates to meet immediate energy needs, the body compensates by altering its metabolism of other nutrients. insufficient dietary carbohydrates can lead to elevated levels of ketone bodies. ketone bodies are the byproducts of partial breakdown of

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.