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The diagram in figure (A) represents the mitochondria, an organelle enclosed by two membranes: an outer and an inner membrane. Known as the 'powerhouse' of the cell, mitochondria generate 95% of the cell's ATP. This energy production occurs during the breakdown of food molecules through glycolysis, oxidative decarboxylation, and oxidative phosphorylation (including the Kreb's cycle and the electron transport chain).

1. a
2. b
3. c
4. d

Correct answer: c

Solution

The question refers to mitochondria and their role in ATP production through processes like glycolysis, oxidative decarboxylation, and oxidative phosphorylation. However, the options (A, B, C, D) are not described, so the answer is inferred based on the context.

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