BIOD 121 Portage Questions and Answers with complete solution

food - provides calories for energy nutrients - (1) promote growth and development; (2) maintain tissue, cells, and bone; (3) fuel the body for physical and metabolic work; (4) regulate body processes over 45 essential nutrients hunger - internal drive/sensation - growling, pain appetite - external drive to eat - pleasant feeling, eat when not hungry role of hypothalamus in hunger - detects drop in nutrients in circulation - hunger center rise - satiety center monitors hormonal signals and nervous system from entire body GI tract - mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus hormones that increase hunger - Ghrelin, Neuropeptide Y (NPY), Endorphins hormones that decrease hunger - Leptin, serotonin, cholecystokinin (CCK) four external forces for eating habits - sensory cognitive environment health statussensory forces -