Brown fat, found in small, hibernating animals and infants, has a protein that acts like DNP. We would therefore expect brown fat to heat production because O Decrease; it is more dense that regular "white" fat. This limits O₂ diffusion, thereby decreasing the rate of aerobic metabolism and, therefore, heat generation. Decrease; it contains more mitochondria. This increases the efficiency with which glucose catabolism is coupled to ATP Synthesis, and, therefore, less of the chemical energy of catabolism is lost as heat. O Increase; it is more dense than regular "white" fat, so it is a better temperature insulator. By maintaining the temperature of the organism closer to the optimal temperature for enzymes, metabolism, and therefore heat generation, is maintained. Increase; it contains a protein that forms a pore in the inner mitochondrial membrane. This allows H* to diffuse down its gradient without the energy being captured and coupled to ATP Synthesis. The energy is lost as heat.
Brown fat, found in small, hibernating animals and infants, has a protein that acts like DNP. We would therefore expect brown fat to heat production because O Decrease; it is more dense that regular "white" fat. This limits O₂ diffusion, thereby decreasing the rate of aerobic metabolism and, therefore, heat generation. Decrease; it contains more mitochondria. This increases the efficiency with which glucose catabolism is coupled to ATP Synthesis, and, therefore, less of the chemical energy of catabolism is lost as heat. O Increase; it is more dense than regular "white" fat, so it is a better temperature insulator. By maintaining the temperature of the organism closer to the optimal temperature for enzymes, metabolism, and therefore heat generation, is maintained. Increase; it contains a protein that forms a pore in the inner mitochondrial membrane. This allows H* to diffuse down its gradient without the energy being captured and coupled to ATP Synthesis. The energy is lost as heat.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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