Breaking Down Glucose Power Point to Making Cards.
-
Upload
jacob-lambert -
Category
Documents
-
view
222 -
download
1
Transcript of Breaking Down Glucose Power Point to Making Cards.
Anaerobic (no oxygen) Glycolysis
• In the cytoplasm
• Glucose PGAL pyruvic acid
• 6-C 3-C 3-C
• (Pyruvic acid = pyruvate)
Glycolysis
• What got this reaction started?2 ATP molecules gave P to each end of 6-carbon glucose (it splits)
Glycolysis
• Glucose (with phosphates) breaks into two PGAL molecules
• PGAL reforms into pyruvic acid (pyruvate)
• 4 ATP
• 2 NADHform
e- carrier
Glycolysis Summary
• 2 ATP for glucose to PGAL to pyruvate• 4 ATP formed• 2 ATP net
• Also 2 NADH (pick up electrons)
• How Glycolysis Works (click)• Sing Along
FERMENTATION
• ONE GREAT SIDE-STEP IS TO REGENERATE NADH back to NAD+
• (so it can pick up e- again)
Pyruvic Acid Can’t Enter Mitochondrion
• So it needs “Cut and Groomed”
1.Cut off carbon (as CO2)
Leaves 2-C acetyl group
• 2. Add Coenzyme A
FORMS Acetyl-CoA
Getting Ready to go into the Mitochondrion
• Acetyl CoA and Kreb Cycle
“Cut” carbon removed
“Groomed”
By Coenzyme A
(2-C)
Two Types of Electron Carriers
• Empty FAD picks up e- to form FADH2
• e-
• Empty NAD+ picks up e- to form NADH
• ATP Synthesis NAD and FAD
e-
What is made at the end of the Krebs cycle (aka Citric Acid Cycle)?
e- carriers
Waste gas
High energy
Or Krebs Cycle
CLICK ME:Krebs Cycle
ETC and Chemiosmosis
• NADH and FADH2 bring their e- to the
ETC (in the inner membrane of the
mitochondrion)
NADH and FADH2 animation
ATP Synthase Movies
• ATP Synthase (VCAC)
• http://www.sp.uconn.edu/~terry/images/movs/synthase.mov
OXYGEN IS THE FINAL ELECTRON ACCEPTOR
• Oxygen + H+ forms water
• Oxygen: the final electron acceptor
Electron Transport Chain
• Electron Transport Chain (pretty sweet)
• Click here krebstca
• Click Here VCAC: Cellular Processes: Electron Transport Chain: First Look (won’t show on VPU, but can see on own computer screen)