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The inner membrane of a mitochondrion is:

ADimly figured
BDeeply folded
CDensely fused
DDoubly formed
Answer & Solution
Correct answer: B. Deeply folded
1. The outer membrane is porous instead. 2. The folds increase the surface area. 3. The inner membrane is deeply folded. _Source: syllabus Science, Ch 5 'The Fundamental Unit of Life'_
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