Metabolism Flashcards
Krebs Cycle
Citric acid cycle; a set if 8 reactions arranged in a cycle in which free energy is recovered in the form of ATP.
Electron Transport
The passing of electrons over a membrane aiding in a reaction to recover free energy for the synthesis of ATP.
Beta Oxidation
A series if reactions in which fatty acids are broken down.
Pyruvate
A by product of glycolysis.
Glycolysis Pathway Calculation Formula
Glucose + 2Pi + 2ADP + 2NAD + 2 lactic acid + 2ATP + 2NAD
ATP/CP Calculation Formula
ADP + CP —-Creatine Kinase— ATP + Creatine
ATP Calculation Formula
ATP —-myosin ATPase—- ADP + Pi + Energy
Oxidative Pathway
Oxygen combines w/lactic acid resynthesizing glycogen to produce energy aerobically.
Glycolytic Pathway
Glucose is broken down to produce energy anaerobically
ATP/CP Pathway
ATC/CP provide anaerobic sources of phosphate-bond energy. The energy liberated from hydrolysis (splitting) of CP rebonds ADP & Pi to form ATP.
RQ Calculation Formula
RQ = volume of CO2 expired / volume of O2 utilized
Respiratory Quotient
aka RQ - A method of determing the “fuel mix” being used giving us a way to measure the relative amounts of fats, carbohydrates, and proteins being burned for energy
Thermogenic Effect
The heat liberated from a particular food is thus a measure not only of its energy content but also of its tendency to be burned as heat
Calorie
A unit of heat
Kilocalories
The amount of energy released when food is digested
Basal Metabolic Rate
aka BMR - the minimum energy required to maintain the body’s life function @ rest. Usually expressed in calories per hour per square meter of the body surface
Metabolic Set Point
The base rate if metabolism that your body seeks to maintain; results in your basal metabolic rate
Catabolism
The breaking down in the body of complex chemical compounds into simple ones ( eg: amino acids to individual proteins)
Anabolism
The building up in the body of complex chemical compounds from simpler compounds (eg: proteins from amino acids)
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.
Homeostasis
The automatic tendency to maintain a relatively constant internal environment.
Training Effect
An increase in functional capacity of muscles & other bodily tissues as a result of increased stress (overload) placed upon them.
