NSCI 2114 Study Guide - Quiz Guide: Hydrolysis, Tachypnea, Peanut Butter
Document Summary
Exam 5 review: regulates absorption from food based on the body"s need, minerals in gastric juices and sloughed-off intestinal cells are either excreted in the feces or reabsorbed through the large intestine. Kidneys: excrete excess and reabsorb minerals. Sources: foods from animal sources, plant seeds, 50 percent of phosphorus is bioavailable due to presence of phytates, soft drinks and colas contain phosphoric acid. Bones are dynamic, living tissues that constantly break down and reform. Bone mineral density (bmd: amount of minerals, in particular calcium, per volume in an individual"s bone, determines bone strength. Peak bone mass: genetically determined maximum amount of bone mass an individual can accrue, occurs in the 20s; some can be added in the 30s. Bone loss begins in the mid-30s: bone loss exceeds rate at which new bone is added, losses accelerate in women after menopause, losses occur in men with age. Height is lost with age due to loss of bone mass in the spine.
