48493
Description
Mind Map by ewelinaskula, updated more than 1 year ago
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Created by ewelinaskula
over 11 years ago
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Electron transport chain
- H atoms(electrons it posses) potential
source of energy carried by NAD and
FAD from Krebs cycle
- Energy of those electrons is converted into
a form the cells can use, ATP
- Energy of those electrons is converted into
a form the cells can use, ATP
- Occurs in mitochondria
- Enzymes and proteins
attached to cristae, involved in
the ETC, hence ATP synthesis
- Have more densely packed cristae-provide a greater
surface area for the attachments of enzymes and other
proteins Involved in ETC
- Enzymes and proteins
attached to cristae, involved in
the ETC, hence ATP synthesis
- ATP synthesis using ETC:
- 1. H atoms (from glycolysis and Krebs
cycle) combine with coenzymes NAD,
FAD, attached to the cristae
- 2. NADH and FADH donate e- of the H atoms they
are carrying to the 1st molecule in the ETC
- 3. Release of protons from H
atoms-actively transported across the
inner mitochondrial membrane
- 4. e- pass along a chain of ET carriers in series of oxi-red reactions,
lost energy used for ADP +Pi =>ATP, remaining energy released as
heat
- 5. Proton accumulate in the space between two mitochondrial
membranes before the diffuse back into mitochondrial matrix through
special proteinChannel
- 6. At the end of chain e- combine with protons and O2 to
form water. O2-final acceptor of e- in the ETC
- 6. At the end of chain e- combine with protons and O2 to
form water. O2-final acceptor of e- in the ETC
- 5. Proton accumulate in the space between two mitochondrial
membranes before the diffuse back into mitochondrial matrix through
special proteinChannel
- 4. e- pass along a chain of ET carriers in series of oxi-red reactions,
lost energy used for ADP +Pi =>ATP, remaining energy released as
heat
- 3. Release of protons from H
atoms-actively transported across the
inner mitochondrial membrane
- 2. NADH and FADH donate e- of the H atoms they
are carrying to the 1st molecule in the ETC
- 1. H atoms (from glycolysis and Krebs
cycle) combine with coenzymes NAD,
FAD, attached to the cristae
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