Chapter 7: Mitochondria

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MITOCHONDRIA An example of localization of mitochondria in close proximity to a source of substrate is seen in the relationship of mitochondria to lipid droplets. They may partially surround small lipid droplets and when the droplets are very large, as in this liver cell from a fasted hamster, several mitochondria may be closely applied to its surface. The fatty acid oxidases of the mitochondria are involved in the metabolism of triglycerides, and this intimate relationship no doubt facilitates transport of substrate to the enzymes. Figure 254. Portion of a liver cell from a hamster fasted for four days. Figure 254
MITOCHONDRIA Energy for muscle contraction is derived mainly from metabolism of carbohydrate, but under certain conditions lipid also serves as an energy source. In cardiac muscle, lipid droplets are often partially enveloped by mitochondria in the interstices between myofibrils. Figures 255 and 256. <strong>Mitochondria</strong>-lipid relationships in papillary muscle of the cat heart. Figure 255, upper Figure 256, lower
Page 2 and 3: Second Edition THE CELL DON W. FAWC
Page 4 and 5: PREFACE The history of morphologica
Page 6 and 7: MITOCHONDRIA Mitochondria are ubiqu
Page 8 and 9: STRUCTURE OF MITOCHONDRIA A mitocho
Page 10 and 11: MITOCHONDRIA In general, the number
Page 12 and 13: MITOCHONDRIA Matrix granules have b
Page 14 and 15: MITOCHONDRIA It is rare to observe
Page 16 and 17: DIVISION MITOCHONDRIA In the 1930s,
Page 18 and 19: 434 MITOCHONDRIA In the upper figur
Page 20 and 21: 438 FUSION OF MITOCHONDRIA No doubt
Page 22 and 23: 442 VARIATIONS IN INTERNAL STRUCTUR
Page 24 and 25: MITOCHONDRIA In mitochondria of wel
Page 26 and 27: MITOCHONDRIA Tubular cristae of pro
Page 28 and 29: MITOCHONDRIA In contrast to the irr
Page 30 and 31: MITOCHONDRIA In the majority of cel
Page 32 and 33: MITOCHONDRIA The ability of mitocho
Page 34 and 35: 466 MITOCHONDRIA During spermiogene
Page 38 and 39: MITOCHONDRIA One of the most striki
Page 40 and 41: MITOCHONDRIA The intimacy of the as
Page 42 and 43: 482 MITOCHONDRIA In the midpiece of

Chapter 7: Mitochondria

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