Question

During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for
A.complex I
B. complex II
C. complex III
D. complex IV

Answer 1

HEY FRIEND...
HERE'S UR ANSWER...
➡. ➡. ➡. ➡. ➡. ➡. ➡. ➡

OPTION [B] is correct ✅✅

➡. ➡. ➡. ➡. ➡. ➡. ➡. ➡
HOPE IT HELPS U...

Answer 2

Answer:

During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for complex II. (Option B)

Explanation:

• A collection of membrane-embedded proteins and organic molecules is referred as electron transport chain.
• Most of these are organised into four large complexes, namely, I to IV.
• In the case of eukaryotes, the replicas of these molecules are present in the inner mitochondrial layer.
• In the electron transport chain, complexes I, II, and IV are protein pumps.
• As electrons move downwards, these complexes capture the energy released, which is used to pump hydrogen ions from the mitochondrial matrix to the intermembrane space.
• As a result of the pumping, it generates an electrochemical gradient in the inner mitochondrial layer, which is used by ATP synthase to form ATP.