BIOB34H3 Lecture Notes - Lecture 9: Basal Metabolic Rate, Meadow Vole, Cellular Respiration
12 Oct 2016
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Animals work: use chem energy to decrease entropy. By synthesizing molecular structures and creating electrochemical gradients. Describe the relationship between metabolic rate and body size. Understand linear regression to identify species that are metabolic outliers. Explain pros and cons of aerobic/anaerobic metabolism. Convert chem energy into molecular structures + mechanical work + heat. Energy that"s converted into heat or work, cannot be used again. Chemical energy that"s converted into heat/work = consumed energy. When you convert chem energy into molecular structures they stay within your body, not consumed. Metabolic rate = rate of energy consumption measured in joules per second aka watt (w) Human being has metabolic rate of around 80-100 w on average (like a incandescent light bulb) We produce small amounts of energy for how much work we have to do. We can get an indirect measure of metabolic rate by oxygen consumption or carbon dioxide production. Problem: this assumes you are engaged in aerobic metabolism.
