2007-01-22 09:22:56 · 6 answers · asked by PIGGY 1 in Science & Mathematics ➔ Biology
magnesium
2007-01-22 09:26:29 · answer #1 · answered by epbr123 5 · 1⤊ 0⤋
The electron transport system is found embedded within the thylakoid membrane and functions in the production of ATP. The system contains membrane-bound electron carriers that pass electrons from one to another. As a result of gaining an electron (reduction), the first carrier of the electron transport system gains energy. It uses some of the energy to pump H+ into the thylakoid.
The carrier then passes the electron to the next carrier. Because it used some energy to pump H+, it has less energy (reducing capability) to pass to the next H+ pump.
This carrier uses some of the remainder of the energy to pump more H+ into the thylakoid.
The electron is passed to the next carrier which also pumps H+.
These carriers are not usually something one needs to know by name, but the primary electron acceptor hands off the electron(s) to a system consisting of an electron carrier called plastoquinone (usually shortened Pq), a complex of two cytochromes (which are closely related to the cytochromes in mitochondria), and a copper-containing protein called plastocyanin (usually Pc).
2007-01-22 09:35:58 · answer #2 · answered by Heike - 2 · 0⤊ 2⤋
The primary electron carrier molecule in photosynthesis is NADPH; the primary electron carrier in cellular respiration is nadh
2007-01-22 10:01:47 · answer #3 · answered by harphey m 1 · 2⤊ 0⤋
Listen to Heike...
Carriers in the light reaction include: H2O, PQH2, and PC.
Look up a diagram of the Calvin cycle for the dark reaction.
2007-01-22 09:55:49 · answer #4 · answered by joie_du_cor 3 · 1⤊ 0⤋
NADP+ carries an electron and becomes NADPH
2007-01-22 09:43:01 · answer #5 · answered by Anonymous · 2⤊ 0⤋
HYDROGEN!!
2007-01-22 09:32:46 · answer #6 · answered by PurpleAndGold10 3 · 1⤊ 0⤋