26. The enzymes that catalyze the reactions of the Krebs cycle are found in which subcellular organelle of eukaryotes?

A. Mitochondrion
B. Chloroplast
C. Ribosome
D. Endoplasmic reticulum

27. Fatty acids are oxidized to acetyl-CoA by which of the following pathways?

A. β-oxidation
B. Entner-Doudoroff
C. pentose phosphate pathway
D. Embden-Meyerhof pathway