Question

Which of the following statements describes the mitochondrial matrix?

(a)It is permeable to molecules with molecular mass as high as 5000 daltons.
(b)It contains transporters for ATP molecules.
(c)Itcontains proteins that are released during apoptosis.
(d)It contains enzymes required for the oxidation of fatty acids.

Answer 1

The mitochondrial matrix contains metabolic enzymes required for processes such as the Krebs Cycle and the oxidation of fatty acids, contributing to ATP synthesis.Hence, option D is the correct answer.

Step-by-step explanation:

The mitochondrial matrix is the fluid-filled inside of the mitochondrion that plays a crucial role in ATP synthesis by hosting various metabolic processes, including the Krebs Cycle and the enzyme-assisted production of ATP. The matrix's composition includes mitochondrial DNA, ribosomes, and metabolic enzymes. Among the statements provided, the one that correctly describes the mitochondrial matrix is (d) It contains enzymes required for the oxidation of fatty acids. The matrix is also the site where the Krebs Cycle takes place, utilizing enzymes to process carbohydrates, fats, and proteins into energy that the cell can use.