Mouse Mitochondria Were Isolated and Incubated with Two Different Compounds

question 52

Multiple Choice

Mouse mitochondria were isolated and incubated with two different compounds to see whether they affected FADH₂ oxidation, NADH oxidation, or ATP formation.A control sample was run in the absence of either compound.The results are summarized in the table as "yes" if a process was observed and "no" if a process was not observed. Which statement is consistent with these data?

• A) Compound Z inhibits a component of the electron transport chain, while compound A inhibits ATP synthase.
• B) Compound A inhibits a component of the electron transport chain, while compound Z inhibits ATP synthase.
• C) Compound Z inhibits the first component of the electron transport chain, while compound A inhibits a later component of the chain.
• D) Compound A inhibits the first component of the electron transport chain, while compound Z inhibits a later component of the chain.
• E) Compound A and compound Z both directly interfere with the final transfer of electrons to oxygen.

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Definitions:

Neurocognitive Disorder

A class of disorders characterized by primary clinical deficits in cognitive functioning that significantly affect daily living.

Alzheimer's Disease

A progressive neurodegenerative disorder characterized by memory loss, cognitive decline, and eventual loss of ability to perform everyday activities.

Major Neurocognitive Disorder

A brain disorder characterized by a deteriorating course of deficits in neurocognitive functioning (e.g., memory, attention) that interferes significantly with independent living.

Alzheimer's Disease

A progressive neurodegenerative disorder that affects memory, thinking, and behavior, and is the most common cause of dementia.