LIFESCI 15 Lecture Notes - Lecture 89: Basal Metabolic Rate, Master Boot Record, Calorie
Document Summary
Diets vary among animals, herbivores, eat only plants, carnivores, eats only animals, omnivores, eats plants and animals, but, the processing and deriving of energy from food is always the same. Metabolism: how much food does an animal need, the kilocalorie: 1000 calories (energy required to raise 1 g h2o. They are very small (i) (ii) (iii) needs to insulated more often (iv) 5g how much food does a shrew need? (a) 5g shrew * (35cal/g)/h *24 hr/d (i) 4. 2 kcal/d (3) calories for macromolecules (a) carbo: 4 kcal/g (b) proteins: 4 kcal/g (c) fat: 9 kcal/g: take home message #1: basal metabolic rate is the energy expenditure necessary to keep a resting animal alive. Digestion and absorption: mouth, 2 functions, mashup food, partially digest starch (alpha-amylase, stomach, 3 functions, more food mashing, star t protein digestion (hcl, pepsin, secret acid: denature protein, kill bacteria (1) note: harsh conditions help break down foods.
