Cell respiration PDF

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Cellular respiration document for an assignment about cellular respiration...

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I. Glycolysis Takes place in Cytoplasm Required: 2 ATP 1 Glucose

Glucose C6H12O6

ATP Hexokinase ADP

Glucose 6 Phosphate

Phosphoglucoisomerase

Fructose 6 Phosphate

ATP Phosphofructokinase ADP

Fructose 1,6 Biphosphate

Aldolase Enzymes: Phosphotriose Isomerase

PGAL/G3P

NAD+ H+ + NADH

NAD+ H+ + NADH

H2 O

ADP + P ATP

ADP + P CO2

ATP PYRUVATE

Summary of Glycolysis IN

OUT

H2 O

NET

1 Glucose

2 Pyruvates Pyruvates

2 ATP

4 ATP

2 ATP

2 NADH

2 NADH

2 H2O 2 CO2

2 H2O 2 CO2

2 Pyruvates and 2 NADH Move into the Mitochondria Membranes of Mitochondria

CO2

II. Oxidative Decarboxylation/Pyruvate Oxidation Takes place in the MATRIX of the Mitochondria Required: Oxygen Vitamin B1 (thiamine) this is source of CoA 2 Pyruvates from cytoplasm

2 Pyruvate

NAD+

CO2

CO2 NAD+

NADH

NADH

CoA

CoA 2 Acetyl CoA

Summary of Oxidative Decarboxylation IN

OUT

2 Pyruvates

2 Acetyl CoA

2 NAD+

2 NADH

2 CoA

2 CO2

Each Acetyl CoA enters the Krebs Cycle

III. Krebs/Citric Acid Cycle Takes place in the Matrix Two Turns of the Cycle one for each Acetyl CoA

Summary of Krebs/Citric Acid Cycle x 2 IN

OUT

2 Acetyl CoA 6 NAD+

6 NADH

2 H2O

4 CO2

2 FAD

2 FADH2 2 ATP

IV. Electron Transport Chain Located on the Cristae (Inner Membrane of Mitochondria) All the energy carrier molecules enter the electron transport chain. Notice that NADH enters earlier than FADH2 NADH provides electrons to pump 3 H+ into the intermembrane space FADH2 provides electrons to pump 2 H+ into the intermembrane space This causes an electrochemical gradient to form The protons then flow back through ATP Synthase forming 1 ATP for every proton The final electron acceptor is Oxygen which joins with hydrogen to form water.

Summary of ETC IN

OUT

10 NADH

30 ATP

2 FADH2

4 ATP Water...