Cellular energy the krebs cycle l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 5

Cellular Energy – The Krebs cycle PowerPoint PPT Presentation


  • 131 Views
  • Uploaded on
  • Presentation posted in: General

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.

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Cellular energy the krebs cycle l.jpg

Cellular Energy – The Krebs cycle

aka TCA -- Tricarboxylic Acid Cycle

aka CAC -- Citric Acid Cycle


Kreb s cycle l.jpg

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


The actions l.jpg

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)


The players l.jpg

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


Summary of actions kreb s cycle l.jpg

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)


  • Login