What events takes place in the electron transport chain?

Electron transport chain is a process occurring during photosynthesis through which electron essential to produce energy as ATP is transported through the matrix.  

Explanation:

Electron transport chain is a process occurring during photosynthesis through which electron essential to produce energy as ATP is transported through the matrix.  

Two complex bio molecules - NADH and FADH2 are oxidized by the four protein complexes to produce energy.  

Both NADH and FADH2 transports the electron through the inner membrane space. In first complex, electron move from NADH to ETC and get oxidized to  NAD . In the second complex, FADH2 is oxidized. In the third complex, no additional electrons enter the chain except from complexes I and II. At complex IV, electrons are transferred to a molecule of oxygen which then reduces to water.

true tan speed = ang vel x radius

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles