Aerobic Respiration Coenzyme Plus Cofactor

1. Cofactor and Coenzyme
Aerobic Respiration
By Kanwal Nisa

2. Cofactor vs Coenzyme
Coenzyme and Cofactor
1.
It carries chemical groups between enzymes
They bind to an enzyme
2.
CoSubstrates
Helper molecules
3.
Coenzyme loosely bound to enzymes
Some cofactors covalently bound the enzyme

3. 4.
Can be easily removed
It can be removed only by denaturation
5.
Chemical molecule
Chemical compound
6.
Organic substances
Inorganic substances

4. 7.
It is a type of cofactor
Two types of cofactors: Coenzyme and
prosthetic groups
8.
They act as carriers
Increase the speed of reaction
9.
Biotin, Vitamin, Coenzyme A
Metal ions such as K+, Zn2+

5. Aerobic Respiration
• Aerobic respiration is the process of producing
cellular energy in the presence of oxygen.”

6. Aerobic Respiration
• Aerobic respiration is a biological process
in which food glucose is converted into
energy in the presence of oxygen.
• Glucose (C6H12O6) + Oxygen 6(O2) →
Carbon-dioxide 6(CO2) + Water 6 (H2O) +
Energy (ATP)

8. Electron Transport Chain
• The electron transport chain is a cluster of
proteins that transfer electrons through a
membrane within mitochondria to form a
gradient of protons that drives the
creation of adenosine triphosphate (ATP).

10. Energy Balance Sheet
• Glycolysis
• 4ATP
• 2NADH
• Two ATP used in Transport of NADH
• Kreb Cycle
• 2 more ATP
• 6NADH
• 2FADH2

11. • Electron Transport
• 24ATP molecule
• Oxidation of FADH2 yields 4 ATP molecules
• Net Gain
• 36ATP molecules
• Formation of Acetyl CO-A
• 1 CO2
• 1NADH