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Mitochondria & Chloroplasts. Mighty Mitochondria.

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Presentation on theme: "Mitochondria & Chloroplasts. Mighty Mitochondria."— Presentation transcript:

1 Mitochondria & Chloroplasts

2 Mighty Mitochondria

3 Cellular distribution of mitochondria Fluorescence micrograph of a Cos-7 cell. Mitochondria (green) & Microtubules (red) Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

4 Electron micrograph of a thin section of a mitochondrion Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

5 Comparison of mitochondria & bacteria organization Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

6 Mitochondrial DNA

7 Glycolysis and Lipid Oxidation Provide Acetyl- CoA to the Mitochondria for the Citric Acid Cycle

8 Citric Acid Cycle Generates Reducing Potential as NADH and FADH 2 used for Oxidative Phosphorylation

9 Disease causing mutations of mitochondrial proteins Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

10 Machinery for importing proteins into mitochondria Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

11 Import of proteins into the mitochondrial matrix Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

12 Import of the ADP/ATP antiporter into the inner membrane Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

13 Roles of mitochondria in apoptosis Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

14 Clever Chloroplasts

15 Electron micrograph of a thin section of a chloroplast Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

16 Photosynthetic machinery of chloroplasts and cyanobacteria Copyright 2008 by Saunders/Elsevier. All rights reserved. Fig. 19-7

17 Chloroplast DNA

18 Tobacco Chloroplast DNA

19 Comparison of photosynthetic systems that produce ATP Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.

20 Light Reactions Synthesis of ATP and NADPH Series of reaction centers transport e - 's & generate H + gradient –Light harvesting antennae (chlorophyll & other pigments –Photosystem II –Quinone –Photosystem I –Ferridoxin –NADP reductase

21 Dark Reactions Calvin Cycle –Synthesis of triose phosphates Carboxylation

22 Pathways for protein import into chloroplasts Fig Copyright 2008 by Saunders/Elsevier. All rights reserved.


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