involves the formation of a 6-carbon molecule and its successive degradation to a 4-carbon pickup molecule
electron transport chain
involves removal and/or transfer of hydrogen (or electrons) from the substrate molecule
takes place in mitochondria, occurs when fats are used instead of sugars to produce ATP.
Lipids containing a glycerol molecule attached to three fatty acid chains; chemical form in which most fats exist in food and in the body.
the balance between the amount of nitrogen taken in (to the soil or the body) and the amount given off (lost or excreted)
Essential nutrients that do not yield energy, but that are required for growth and proper functioning of the body.
inorganic substances that the body cannot manufacture but that act as catalysts, regulating many vital body processes
in cellular respiration, series of ananerobic chemical reactions in the cytoplasm that breaks down glucose into pyruvic acid; forms a net profit of two ATP molecules
usable energy source; adenosine triphosphate; 3 phosphate + 1 sugar; common carrier of energy in cells. Cell gains 34 atp molecules from aerobic metabolism of one glucose molecule
macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes. Dietary proteins mainly animal
a class of nutrients that does not mix with water. made mostly of fatty acids, which provide energy to the body.
The entry compound for the Krebs cycle in cellular respiration; formed from a fragment of pyruvate attached to a coenzyme.
helps transport fat-soluble vitamins (A, D, E, K), contributes to flavour and texture of foods, gives us a feeling of satiety
A small, very toxic molecule (NH3) produced as a metabolic waste product of protein and nucleic acid metabolism. Found in urine when proteins undergo deamination
the product of the incomplete breakdown of fat when glucose is not available in the cells. highly acidic, made in liver
The process that synthesizes a complex molecule from simpler compounds, thus requiring energy.
When the stomach and small intestine are empty and the body is drawing on its stored energy reserves, it is in the __________ state.
a hormone secreted by the pancreas, The antagonist of insulin. Its release is stimulated by low blood glucose levels. It stimulates the liver, to break down its glycogen stores to glucose and subsequently to release glucose to the blood.
An adenine-containing nucleoside triphosphate that releases free energy when its phosphate bonds are hydrolyzed. This energy is used to drive endergonic reactions in cells.
Part of the electron transport chain. A process occurring in the mitochondria that results in the formation of ATP from the flow of electrons across the inner membrane to bind with oxygen.
generation of glucose from non-sugar carbon substrates like pyruvate, lactate, glycerol, and amino acids. The vast majority takes place in the liver and, to a smaller extent, in the cortex of kidney. This process occurs during periods of fasting, starvation, or intense exercise and is highly endergonic.
______ occurs when cellular atp and glucose levels are high. Creation of triglycerides (fat-- fatty acids and glycerol) - moves fatty acids out of bloodstream to store in adipose tissue
_____ _____ cannot be stored; those not used immediately to build proteins are oxidized for energy or converted to carbohydrates or fats.
the body is unable to eliminate the excess heat. A medical emergency consisting of a fever of at least 105 F, hot dry skin, rapid heartbeat, rapid and shallow breathing, and elevated or lowered blood pressure caused by the breakdown of the body's cooling mechanism.