Cell Respiration OBJ describe the structure and function

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.

Cell Respiration � Breaking chemical bonds releases electrons. �C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + 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 CO 2. � Electron Carriers: � 6 NADH � 2 FADH 2

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 H 2 O.

�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 H 2 O.

Review Steps �http: //youtu. be/k. N 5 Mtq. AB_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 2 CO 2 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 2 CO 2 and 2 ETHANOL �Lactic Acid Fermentation Occurs in MUSCLE cells when OXYGEN levels are low. Occurs in the CYTOPLASM of the cell. 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?