KINE 4020 Study Guide - Midterm Guide: Retinol Binding Protein, Retinyl Palmitate, Enterocyte
30 Aug 2016
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Complex molecules built from amino acids linked to each other by peptide bonds: body needs aa in order to synthesize its own proteins and nitrogen-containing molecules that make life possible. Rda: higher for children due to tissue growth, & pregnant/lactating women due to growth & development, athletes may require more. Extra protein to support repair of tissue, promote tissue growth, sustain increased energy supply, and maintain increased o2 carrying capacity. Not necessarily, the increased food intake required to meet the elevated energy demand should already provide the extra protein. Endogenous source of protein that provides amino acids & nitrogen: comes from turnover of mucosal cells that desquamate (peel off in flakes) generating. 50g protein/day: 17g protein from degradation of digestive enzymes & glycoproteins from secretions of the salivary glands, stomach, intestine, liver, and pancreas. A protein can be denatured by unfolding its polypeptide chains & lose its biological activity.
