BIOL 1407 Lecture Notes - Lecture 7: Malpighian Tubule System, Distal Convoluted Tubule, Efferent Arteriole
Document Summary
Basic principles of nutrient, waste, and waste exchange: taking in nutrients and putting out waste, rate of exchange: how much material can be moved in a given period of time. How is the rate of exchange of materials related to the surface for exchange: greater sa increases rate of exchange, bigger size = must be better at exchange, surface area/volume ratio. How do animals attempt to increase surface are for exchange: plants: little leaves, flat leaves, stomata, animals: alveoli of respiratory system, more folding as creatures become more complex. Bioenergetics: overall energy needed by an organism: determined by size, environmental activity. Metabolism: sum total of all chemical reactions that require energy inside an organism: bmr: basal metabolic rate. Depends on the minimum amount of energy an animal expends when it"s not stressed/growing, has not eaten, normal temperature, is at rest, etc. Bigger size = more nutrition needed: smr: standard metabolic rate.
