metabolism Flashcards
Homeostasis
The automatic tendency to maintain a relatively constant internal environment.
Training effect
An increase in functional capacity of muscles and other bodily tissues as a result of increased stress (overload) placed upon them.
Metabolism
The chemical processes occurring within a living cell or organism that are necessary for the maintenance of life. In metabolism some substances are broken down to yield energy for vital processes while other substances, necessary for life, are synthesized.
Anabolism
The building up in the body of complex chemical compounds from simpler compounds. (E.g., proteins from amino acids)
Catabolism
The breaking down in the body of complex chemical compounds into simpler ones. (E.g. Amino acids into individual proteins)
Metabolic set point
The base rate of metabolism that your body seeks to maintain; results in your basal metabolic rate.
Basal metabolic rate
The minimum energy required to maintain the body’s life function at rest. Usually expressed in calories per square meter of the body surface.
Kilocalories
The amount of energy that is released when foo is digested.
Calories
A unit of heat
Thermogenic effect
The heat liberated from a particular food is thus a measure not only of it energy content but also of it’s tendency to be burned as heat.
Respiratory quotient (RQ)
A method of determining the “fuel mix” being used giving us a way to measure the relative amounts of fats, carbohydrates, and proteins being used for energy.
ATP/CP Pathway
ATP and CP provide anaerobic sources of phosphate-bond energy. The energy liberated from hydrolysis (splitting) of CP rebounds ATP and Pi to form ATP.
Glycolytic Pathway
Glucose is broken down to produce energy anaerobically.
Oxidative Pathway
Oxygen combines with lactic acid resynthesizing glycogen to produce energy aerobically.
Pyruvate
A byproduct of glycosis.