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Multiple Choice
Which of the following best describes the primary function of mitochondria in eukaryotic cells?
A
To synthesize proteins by translating mRNA on ribosomes
B
To store genetic information as the cell’s main genome
C
To package and sort proteins for secretion via the Golgi apparatus
D
To generate ATP primarily through aerobic cellular respiration (e.g., oxidative phosphorylation)
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Verified step by step guidance
1
Identify the main role of mitochondria in eukaryotic cells by recalling their function related to energy production.
Understand that mitochondria are often called the 'powerhouses' of the cell because they generate ATP, the cell's energy currency.
Recall the process of aerobic cellular respiration, which occurs in mitochondria and includes glycolysis, the Krebs cycle, and oxidative phosphorylation.
Recognize that oxidative phosphorylation is the key step where most ATP is produced using oxygen, which is why mitochondria are essential for energy metabolism.
Compare the other options (protein synthesis, genetic information storage, protein packaging) to the known functions of other organelles like ribosomes, nucleus, and Golgi apparatus, confirming that ATP generation is the primary mitochondrial function.