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Anaerobic respiration

Campbell Biology Chapter 9

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Cellular respiration
Biology
Biochemistry
Metabolism
Glycolysis
Citric acid cycle
Oxidative phosphorylation
Chemiosmosis
Pyruvate decarboxylation
Anaerobic respiration
Mitochondrial matrix
Carbohydrate catabolism

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 9Cellular Respiration and Fermentation 1 Life Is Work an Introduction Living cells require energy to do work: assembling polymers, membrane transport, etc. Animals can obtain energy by feeding on other animals or photosynthetic organisms Energy flows into an ecosystem as sunlight and leaves as heat The chemical elements essential to life are recycled Photosynthesis generates O2 and organic molecules, which are used in cellular respiration Cells use chemical energy stored in organic molecules to generate ATP, which powers work ? 2017 Pearson Education, Inc. 2 Light energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria CO2 + H2O + O2 Organic

respiration respiration

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Adenosine triphosphate
Adenosine diphosphate

1 B io F actsheet January 1998 Number 12 Respiration Aerobic respiration can be divided into four stages: 1. Glycolysis (G) 2. The Link reaction (LR) 3. Kreb?s cycle (K) 4. The electron transfer chain (ETC) These take place in different parts of the cell (Table 1) and the detailed biochemistry of these reactions is shown overleaf. Respiratory quotients The respiratory quotient (RQ) is defined as the ratio of carbon dioxide produced to oxygen consumed per unit time by an organism: volume of CO2 produced volume of O2 consumed Different substances give different RQ values Cellular respiration is the process by which the energy contained in organic molecules is made available for all of the active

Ap bio cell respiration1 ppt

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Redox
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Nicotinamide adenine dinucleotide
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Anaerobic respiration
Cofactor
Metabolism

Cellular Respiration Harvesting Chemical Energy ATP What?s the point? The point is to make ATP! ATP Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats, proteins Heterotrophs eat these organic molecules ? food digest organic molecules to get? raw materials for synthesis fuels for energy controlled release of energy ?burning? fuels in a series of step-by-step enzyme-controlled reactions Harvesting stored energy Glucose is the model catabolism of glucose to produce ATP C6H12O6 6O2 ATP 6H2O 6CO2 ? + + + CO2 + H2O + heat fuel (carbohydrates) COMBUSTION = making a lot of heat energy by burning fuels in one step RESPIRATION = making ATP (& some heat) by burning fuels in many small steps CO2 + H2O + ATP (+ heat) ATP glucose

cellular respiration

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Chemistry
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STUDY GUIDE FOR CELLULAR RESPIRATION Cellular Respiration: Transfer of energy from organic compounds (especially GLUCOSE) to ATP. AEROBIC: cellular respiration WITH O2 ANEROBIC: cellular respiration WITHOUT O2 TWO STAGES OF CELLULAR RESPIRATION: STAGE 1: Glucose is converted to Pyruvate producing small amounts of ATP and NADH. STAGE 2: If O2, then: PYR and NADH make lots of ATP; if no O2, then Lactate or Ethanol and CO2 are produced. SEE FIGURE 10 FROM PAGE 104 IIN THE TEXTBOOK.
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