The Electron Transport Chain & Mitochondria

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  • Created by: J.E.C.
  • Created on: 14-10-13 20:38
What happens to the CO2 produced in the Krebs cycle?
It is a waste product so is removed by gaseous exchange.
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The hydrogen atoms produced in the Krebs cycle are a useful energy source, why?
The electrons they possess are a potential source of energy.
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How do the hydrogen atoms produced in the Krebs cycle end up in the ETC?
They are carried by coenzymes NAD & FAD. This is the process by which the energy of the electrons within the hydrogen atoms is converted into a form that cells can use (ATP).
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Mitochondria are __ ___ organelles found in ___ cells?
rod-shaped, eukaryotic
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Each mitochondrion is bound by a ___ ___ ___ and an inner one that is folded into extensions called ___?
smooth outer membrane, cristae
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The inner space or ___, is made up of semi-rigid material of ___, ___and traces of ___?
matrix, protein, lipids, DNA
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Mitochondria are the sites of the ___ and the cristae have the ___and other proteins involved in the ETC attached and hence ATP ___?
ETC, enzymes, synthesis
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Mitochondria occur more in metabolically active cells such as the ___, ___, and ___ cells which carry out active transport?
muscles, liver, epithelial
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The mitochondria in these cells also have more densely packed ___ which provide a greater ___ ___, for the attachment of ___ and other proteins involved in the ETC?
cristae, surface area, enzymes
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Other cards in this set

Card 2

Front

The hydrogen atoms produced in the Krebs cycle are a useful energy source, why?

Back

The electrons they possess are a potential source of energy.

Card 3

Front

How do the hydrogen atoms produced in the Krebs cycle end up in the ETC?

Back

Preview of the front of card 3

Card 4

Front

Mitochondria are __ ___ organelles found in ___ cells?

Back

Preview of the front of card 4

Card 5

Front

Each mitochondrion is bound by a ___ ___ ___ and an inner one that is folded into extensions called ___?

Back

Preview of the front of card 5
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