15. • A metabolite is a substance that is created or used when the body breaks down food, drugs,
chemicals, or its own tissue.
• Metabolites are usually small molecules that act as intermediates or end products of
metabolism
16. Endothermic means absorbing heat from its surroundings
Exothermic means a process or reaction that releases energy usually in the form of heat
17. Nicotinamide adenine dinucleotide phosphate (NADPH) is a biological carrier of electrons that functions
as a coenzyme in all living organisms
23. Ketones are a type of chemical that your liver produces
when it breaks down fats. Your body uses ketones for
energy typically during fasting, long periods of exercise, or
when you don't have as many carbohydrates