BIOD 121 Portage module 3 latest version graded A+

positive energy balance more calories consumed than expended negative energy balance fewer calories consumed than expended hyperplasia increase in number of cells (e.g., fat cells in childhood, pregnancy) hypertrophy increase in cell size (low growth and maintenance, such as throughout adulthood) basal metabolic rate the number of calories used by the body while in a fasting state accounts for approximately 60-70% of energy expenditure males 1kcal/kg/hr, femals 0.9kcal/kg/hr BMR Effectors gender, lean body mass, body size, temperature, age, nervous system activity, levels of caffeine intake, and tobacco useage and BMR declines by 1-2% per decade Thermic effect of food (TEF) energy used for digestion and absorption of food and accounts for approximately 10% of the calories expended Thermogenesis ability to regulate body temperature and activ