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Cell Structure · Paper 1 — Free Biology HL Practice Questions
1FoundationMCQProkaryotic vs eukaryotic cells1 markPaper 1~2 min
A student observes a cell under a light microscope and notes the presence of a distinct nucleus. Which additional observation would provide the strongest evidence that this cell is eukaryotic?
Solutions
2MasteryMCQOrganelles and their functions1 markPaper 1~2 min
A mitochondrial gene mutation in a eukaryotic cell line causes a 60% reduction in ATP production. The mutation affects a multi-subunit protein complex embedded in the inner mitochondrial membrane that couples proton flow to nucleotide phosphorylation. Which process is most directly impaired by this mutation?
Solutions
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