Explain how nutrients are obtained from our diet, and the contribution of each nutrient to the aerobic respiratory pathway

1.Digestion, Nutrition & Bonds Foodstuffs in the main consist of biopolymers (complex carbohydrates, proteins and lipids); large molecules do of monomers (sugars, amino group acids and fat acids/glycerol) united to take onher by chemical trammels. Bonds atomic number 18 of merry importance in living systems, as they ar broken in digestion, to issue nada - they be exergonic reactions - and constructed in repair and growth - endergonic reactions - where the elan vital previously generated is attach. Carbohydrates®Monosaccharides ®4 kcals g-1 Proteins® amino Acids (AAs)®4 kcals g-1 Lipids® Fatty Acids (FAs) and glycerin®9 kcals g-1 Whilst some(prenominal) cohere mixture systems exist the most classic in physiology is the covalent bond; where two atoms sh atomic number 18 outer type electrons, devising both much stable. This forms the basis of peptide; proteins, ester; fats and saccharide: carbohydrate, biopolymer backbones. The noodle bond; electrons are transferred amidst atoms comes a close second, they are differentiate to the oxidation/ decrement (redox) reactions, figure 1, of cellular energy generating systems whose body process is harnessed and then stored within adenosine triphosphate (ATP), (Houston, 2001). They are also vital to the formation of ions within body fluids, e.g. Na+, Ca2+, Mg2+, Cl-, H+; every last(predicate) course a direct or indirect fictional roughage in the energy generating pathways and in other vital areas, e.g. character conduction. Table 1: The main Nutrients NutrientNotes Carbohydrates -Mostly in the form of complex carbohydrates (polysaccharides) Proteins -Twenty amino acids are found in human proteins, only 12 of which can be produced in the body.

The remaining eight are the essential amino acids and moldiness be dietary supplied. Lipids -Usually in the form of triglycerides, which become fatty acids (FAs) and glycerol Minerals -There are twelve make out minerals, which must by dietary supplied; Calcium, Magnesium, Phosphorous, Iron, Potassium, Zinc, Iodine, Copper, Molybdenum, Manganese, Chromium and Selenium. Vitamins -Small organic molecules that stimulate metabolism by fortune as... The shew was well explained. I have always had bar reading and understanding science. This set about was clear and conscise for an amateur reader. trusty source of information. If you want to channel a full essay, hallow it on our website: Ordercustompaper.com

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