V Organ Specialization

V Organ Specialization - Organ Specialization in Metabolism...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Organ Specialization in Metabolism • Energy metabolism in the skeletal and heart muscle • Energy requirements of the brain • Role of adipose tissue • Metabolic functions of the liver Learning Objectives
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Major Pathways of Fuel Metabolism Fig. 22-1 Gluconeogenesis: synthesis of glucose Glycogen degradation and synthesis : hormonally controlled mobilization and immobilization of glucose Fatty acid degradation and synthesis: -oxidation with formation of acetyl-CoA Glycolysis: Glucose 2 pyruvate and 2 ATP)
Background image of page 2
Major Pathways of Fuel Metabolism The citric acid cycle : Oxidation of acetyl-CoA; production of NADH and FADH 2 Fig. 22-1 Oxidative phosphorylation: Oxidation of NADH and FADH 2 to produce ATP Amino acids degradation and synthesis: Degradation of excess amino acids for energy
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Metabolism Coordination • In a single cell, metabolism coordination insures: - prevention of simultaneous activity of opposing pathways - the cell response to changing external conditions - genetically programmed growth • In a multicellular organism, metabolism coordination insures: - cooperation of individual cells - cooperation of organs - the organism response to changing external conditions - behavioral activity - genetically programmed development
Background image of page 4
Organ Specialization • Most organs are specialized metabolically so that only a portion of all possible metabolic pathways operates at high rates. Fig. 22-2
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
• A notable exclusion is the liver, in which all the common metabolic pathways may operate at a high rate, although not simultaneously. Figure 22-2
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/10/2011 for the course SCIENCE 2EE3 taught by Professor Zhorov during the Spring '11 term at McMaster University.

Page1 / 17

V Organ Specialization - Organ Specialization in Metabolism...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online