If an elderly individual experiences increased oxidative stress in their skeletal muscle cells due to reduced antioxidant enzyme activity, which consequence is most likely?

💡 Explanation

Increased oxidative stress causes damage to cellular components, particularly proteins, because reactive oxygen species promote protein degradation via the ubiquitin-proteasome system. Therefore, muscle protein catabolism accelerates, rather than mitochondrial biogenesis improving, which would require reduced oxidative damage.

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