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Ch. 9 Cellular Respiration The breakdown of food molecules to release energy to the cell.

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Presentation on theme: "Ch. 9 Cellular Respiration The breakdown of food molecules to release energy to the cell."— Presentation transcript:

1 Ch. 9 Cellular Respiration The breakdown of food molecules to release energy to the cell.

2 Connection between photosynthesis and cellular respiration

3 In cellular respiration it is NADH NOT NADPH!

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5 Anaerobic respiration: 2 kinds

6 Anaerobic respiration is used in wine-making

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10 Aerobic Cellular Respiration 1. Glycolysis: Glucose is broken cytoplasm 2. Transition Reaction: Convert pyruvate to AcetylCoA 3. Krebs Cycle: Produce most NADH and FADH 2 4. Electron Transport Chain: Convert NADH and FADH 2 to ATP

11 Glycolysis: breaking glucose into pyruvate occurs in cytoplasm

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14 Transition Reaction: converts pyruvate to acetylcoA occurs in intermembrane space of mitochondria

15 Substrate-level phosphorylation: when ATPsynthase makes ATP

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17 General Summary of Krebs cycle (Know your blue sheet!) Occurs in matrix of mitochondria

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19 Electron Transport Chain: converts NADH and FADH 2 to ATP occurs in cristae

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23 Ch. 40,44 Metabolism

24 Strategies for Body Temperature Endotherm: most body heat obtained internally (from metabolism) Endotherms tend to be homeotherms (maintain a constant body temperature) Ectotherms: most body heat obtained externally (from environment) Ectotherms tend to be poikilotherms (allow body temperature to fluctuate with environmental temperature)

25 Modes of Heat Loss and Gain Radiation: heat loss or gain by a difference in body temperature and the environment Conduction: heat loss or gain by direct contact with an object Convection: heat loss or gain by wind or water currents Evaporation: heat loss only, cooling mechanism

26 Body Temp = Heat Produced + Heat Gained – Heat Lost (By Metabolism) (From Environment) (To Environment)

27 Temperature Tolerances CTmi n CTmax

28 Torpor: Hummingbirds Body temperature and oxygen consumption (red line) are high when hummingbirds are active during the day but may drop to 1/20 these levels during periods of food shortage. Dawn Dusk

29 Osmoregulation: salt and water balance

30 What does osmoregulation for us?

31 Water Balance In The K-Rat

32 Special adaptations: Kangaroo rats

33 Excretion of nitrogenous wastes


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