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USMLE Step 1 Bits & Pieces High yield short focused points, monographs, charts, illustrations, tables, and other stuff related to the USMLE Step 1 Exam.

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Old 06-12-2012
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Biochemistry All the Biochemistry Shuttles for your Step 1 Prep!

small list I made ..

shuttle are required to transport substances between mitochondria n cytoplasm in different biochemical pathways where part of cycle takes place in mitochondria and cytoplasm..

Mitochondria to cytoplasm

1) Malate shuttle>> OAA>> gluconeogenesis in liver

2) Citrate shuttle >> acetyl CoA >> FA synthesis liver

3) Ornithine shuttle>> citruline>> urea cycle in liver

cytoplasm to mitochondria

1) Carnitine shuttle>>fatty acyl CoA >> beta-oxidation of fatty acids in liver(primary source of energy) n muscle
The Journey of thousand miles begins with a single step.
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Old 01-26-2013
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it is helpful thank u
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