How many electrons must get passed down the Electron Transport Chain before energy is generated? (1 point)

A 5
B 3
C 4
D 2

I would say b because it's the smartest

The correct answer is D.

Explanation:

2 electrons must move down the Electron Transport Chain before energy is made.

the answer is golgi apparatus

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation: