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
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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.
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.
Transcribed Image Text: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. 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.
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