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Mitochondrial Disorders And Energy Failure Practice Test
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Q1
A newborn with mitochondrial DNA mutation has hypotonia and cardiomyopathy with lactate 9.0 mmol/L (0.5–2.2). The clinician explains that oxidative phosphorylation occurs across the inner mitochondrial membrane and depends on a proton gradient. Which of the following mechanisms best explains decreased ATP production in this disorder?
A newborn with mitochondrial DNA mutation has hypotonia and cardiomyopathy with lactate 9.0 mmol/L (0.5–2.2). The clinician explains that oxidative phosphorylation occurs across the inner mitochondrial membrane and depends on a proton gradient. Which of the following mechanisms best explains decreased ATP production in this disorder?