1 / 5

Cellular Energy – The Krebs cycle

Cellular Energy – The Krebs cycle. aka TCA -- Tricarboxylic Acid Cycle aka CAC -- Citric Acid Cycle. H 2 O. CO 2. CO 2. CO 2. acetyl-CoA. Kreb’s Cycle. citrate. pyruvate from glycolysis. NADH. oxaloacetate. isocitrate. malate. NADH. a- keto glutarate. fumarate. FADH 2.

macaria-roseanne
Download Presentation

Cellular Energy – The Krebs cycle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cellular Energy – The Krebs cycle aka TCA -- Tricarboxylic Acid Cycle aka CAC -- Citric Acid Cycle

  2. H2O CO2 CO2 CO2 acetyl-CoA Kreb’s Cycle citrate pyruvate from glycolysis NADH oxaloacetate isocitrate malate NADH a-keto glutarate fumarate FADH2 succinyl Co-A succinate ATP NADH

  3. ADP --> ATP ADP is phosphorylated to ATP. High-energy bond is formed. (in this case a GDP -->GTP happens first, which immediately phosphorylates an ADP) Water is added to a molecule. H2O Carbon dioxide is removed from a molecule. CO2 the actions NAD+ is reduced to NADH + H+ (aka NADH2 or NADre) NAD has accepted a high-energy electron -- it will hold the energy until needed in another part of the cycle. (Nicotinamide adenine dinucleotide) FAD+ is reduced to FADH + H+ (aka FADH2 or FADre) similar in function to NAD (Flavin adenine dinucleotide)

  4. The players Citrate -- SIT-rate -- 6 carbon 1. Isocitrate -- I-so-sit-rate -- 6 carbon 2. a-ketoglutarate -- AL-fa-KEY-to-GLU-ter-ate -- 5 carbon 3. 4. Succinyl-CoA -- SUX-in-ul KO-a -- 4 carbon 5. Succinate -- SUX-in-ate -- 4 carbon 6. Fumarate -- FYUM-ar-ate -- 4 carbon 7. Malate -- MAL-ate -- 4 carbon 8. Oxaloactetate -- ok-SAL-o-ASS-uh-tate -- 4 carbon Acetyl-CoA -- ah-SEET-ul KO-a -- 2 carbon

  5. H2O CO2 CO2 Summary of Actions: Kreb’s Cycle 8 “players” 3 reductions of NAD+ to NADH 2 CO2 molecules given off for EACH PYRUVIC ACID that enters the Kreb’s cycle-- therefore DOUBLE that for each GLUCOSE 1 FAD+ reduced to FADH2 1 ATP molecule (from GTP) 1 molecule of H2O added (net)

More Related