The crucial events in aerobic respiration are
1. The complete oxidation of pyruvate by the stepwise removal of all the hydrogen atoms, leaving three molecules of `CO_(2)`
2. The passing on of the electrons removal as part of the hydrogen atoms to molecular `O_(2)` with simultaneous synthesis of ATP

Options

A. First process is ETS and takes place in matrix of the mitochondria while second process is TCA and takes place in on the inner membrane of mitochondria
B. First process is TCA and takes place in the matrix of mitochondria while the second process is ETS and is located on the inner membrane of mitochondria
C. First process is ETS and takes place on the inner nmnbranc of mitochondria while second process is TCA and takes place in the matrix of the mitochondria
D. First process is TCA and takes place on the inner membrane of mitochondria while second process is ETS and takes place in the matrix of mitochondria

Answer

B

Explanation

(B) Crucial events in aerobic respiration are :
(i) The complete oxidation of pyruvate by the stepwise removal of all hydrogen atoms leaving 3 molecules of `CO_(2)`. This process takes place in the matrix of mito- chondria and called Krebs' cycle.
(ii) The passing on of the electrons removed as part of the hydrogen atom to molecular `O_(2)` with simultane- ous synthesis of ATP. This process is located on the inner membrane of the mitochondria and called ETS.