Cell Respiration OBJ: describe the structure and function of ATP/ADP OBJ: state and explain the reactants, products, and energy yield (ATP of aerobic respiration)

Cell Respiration Cell Respiration is the process of breaking the chemical bonds of GLUCOSE (a simple carbohydrate) to release ENERGY for life.

Glucose + Oxygen  Carbon Dioxide + Water + Energy Cell Respiration Breaking chemical bonds releases electrons. C6H12O6 + 6O2  6CO2 + 6H2O + ENERGY Glucose + Oxygen  Carbon Dioxide + Water + Energy

Energy Energy = ATP: Adenosine Triphosphate ATP is our bodies USABLE source of energy.

Energy Energy = ATP: Adenosine Triphosphate ATP is our bodies USABLE source of energy. Energy is stored in the bonds between the phosphates.

Energy Energy = ATP: Adenosine Triphosphate ATP is our bodies USABLE source of energy. Energy is stored in the bonds between the phosphates. When a phosphate is broken off ATP, it releases energy and become ADP (adenosine Diphosphate)

2 Types of Cellular Respiration Aerobic cellular Respiration uses OXYGEN. Anaerobic cellular respiration does NOT use oxygen.

Aerobic Cellular Respiration OBJ: describe the process for aerobic cellular respiration, location of processes within the cell and energy yield (glycolysis, Kreb's cycle, Electron Transport Chain)

Aerobic Cellular Respiration (3 steps) Step 1 Glycolysis Occurs in the CYTOPLASM of the Cell. Breaks GLUCOSE into 2 PYRUVATE molecules so that they can fit through the membrane of the MITOCHONDRIA. Releases enough energy to make 2 ATP. GLUCOSE 2 PYRUVATE

Aerobic Cellular Respiration (3 steps) Step 2: Krebs Cycle (citric acid cycle) Occurs in the MATRIX. Releases enough energy to make 2 ATP and makes 6 CO2. Electron Carriers: 6 NADH 2 FADH2

Aerobic Cellular Respiration (3 steps) Step 3: Electron Transport Chain Occurs on the inner membrane of the MITOCHONDRIA. All the electrons from glucose travel to the inner membrane of the mitochondria.

Step 3: Electron Transport Chain continued… Each time an electron is passed from one electron carrier to the next, enough ENERGY is released to make 1 ATP. This happen 32 times to make 32 ATP. The last electron carrier to receive the electron is OXYGEN which quickly combings with 2 hydrogens to make H2O.

Step 3: Electron Transport Chain continued… The last electron carrier to receive the electron is OXYGEN which quickly combings with 2 hydrogen’s to make H2O.

Review Steps http://youtu.be/kN5MtqAB_Yc

Anaerobic Cellular Respiration OBJ: describe the overall process and energy yield of anaerobic respiration. OBJ: compare and contrast lactic acid and alcohol fermentation

Anaerobic Cell Respiration Contains only 2 steps and takes place in: BACTERIA, YEAST, or MUSCLE CELLS when OXYGEN is lacking. Glycolysis Fermentation

Anaerobic Cell Respiration Contains only 2 steps and takes place in: BACTERIA, YEAST, or MUSCLE CELLS when OXYGEN is lacking. Glycolysis Fermentation: Alcohol Fermentation Occurs in BACTERIA and YEAST Occurs in the CYTOPLASM of the cell. Makes 0 ATP and produces 2CO2 and 2 ETHANOL

Anaerobic Cell Respiration Contains only 2 steps and takes place in: BACTERIA, YEAST, or MUSCLE CELLS when OXYGEN is lacking. Glycolysis Fermentation: Alcohol Fermentation Occurs in BACTERIA and YEAST Occurs in the CYTOPLASM of the cell. Makes 0 ATP and produces 2CO2 and 2 ETHANOL Lactic Acid Fermentation Occurs in MUSCLE cells when OXYGEN levels are low. Makes 0 ATP and 2 LACTIC ACID.

Comparing Aerobic and Anaerobic Cellular Respiration OBJ: compare and contrast aerobic and anaerobic respiration

Summary Total ATP: Aerobic cell respiration: 36 Anaerobic cell respiration: 2 Which type of cellular respiration produces the most ATP? Which type releases the most energy? Which type is the most efficient?