(i) __A__ is the site of complete oxidation of pyruvate by the stepwise removal of all the hydrogen atoms.
(ii) __B__  ${\mathrm{CO}}_2$ molecules are released in the above process.

	A	B
1.	Mitochondrial matrix	3
2.	Perimitochondrial space	2
3.	Mitochondrial matrix	6
4.	Inner mitochondrial membrane	3

 

• A

  1

• B

  2

• C

  3

• D

  4