LS2 Lec 5 Energy (4 Slides)

LS2 Lec 5 Energy (4 Slides) - Where do living organisms get...

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1 Life Sciences 2 Energy Chapter 9 Dr. Joseph Esdin Where do living organisms get their energy from? • Autotrophs: Use solar energy to synthesize food compounds • Heterotrophs: Obtain energy by processing the chemical energy in organic compound (food) Where do Cells get their energy from? • Cells obtain energy by processing the chemical energy in organic compound (food) • Food can be sugar, proteins, or lipids Cristae Cristae Intermembrane space Proteins of electron transport system Outer Membrane Inner membrane Matrix Mitochondria and Energy
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2 • Glucose • Two major categories: – Aerobic Pathway – Anaerobic Pathways Energy and Electrons from Glucose • When burned in a flame, glucose releases heat, carbon dioxide, and water – C 6 H 12 O 6 + 6 O 2 ! 6 CO 2 + 6 H 2 O + energy • The same equation applies for the biological, metabolic use of glucose ATP ATP Use • Exergonic reactions produce ATP • ATP is used to power the endergonic reactions
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3 ATP Use Exergonic reaction Catabolism Endergonic reaction:
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This note was uploaded on 01/19/2011 for the course LS 2 taught by Professor Pires during the Fall '08 term at UCLA.

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LS2 Lec 5 Energy (4 Slides) - Where do living organisms get...

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