Skeletal Muscle Bioenergetics I

What are key metabolic features of skeletal muscle? (4)
- 1. Metabolic plasticity
- 2. Mitochondrial enrichment
- 3. Major site of insulin-responsive glucose uptake/metabolism (GLUT 4)
- 4. Muscle-specific isoforms of several metabolic enzymes.
What can be described as a dynamic structure with extraordinary adaptive potential (metabolic and contractile properties)?

Skeletal myofibers.
What are the phenotypic profiles of muscles affected by? (5)
- 1. Innervation/neuromuscular activity
- 2. Exercise training
- 3. Mechanical loading/unloading
- 4. Hormones
- 5. Aging
How many molecules of ADP are reused to resnthesize ATP? What is the byproduct? What, then, is activated?

2 ADP --> ATP + AMP

AMP activates AMPK.
What is harmful about the buildup of lactate under anaerobic settings?

Buildup of lactate can lower blood pH leading to serious consequences.

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marysham

186749

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Skeletal Muscle Bioenergetics I

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Updated

2012-12-03T17:29:03Z

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