Chemoorganotrophy is a term used to denote the oxidation of organic chemicals to yield energy. In other words,
an organic chemical
serves as the initial electron donor.
What is the initial electron donor in ETC?
Answer.
Water
is the initial electron donor,NADP+Accept electrons transport chain,becoming reduced to NADPH.
What is the initial electron donor in the light reaction?
In the light reactions, what is the initial electron donor? Where do the electrons end up?
Water (H2O)
is the initial electron donor; NADP+ accepts electrons at the end of the electron transport chain, becoming reduced to NADPH.
What is the initial electron donor in cellular respiration?
water
is the initial electron donor, carbon Oxide is the final electron acceptor.
What is the initial electron e donor Where do the electrons finally end up?
In the light reactions, what is the initial electron donor? At the end of the light reactions, where are the electrons?
Water
is it initial electron donor; NADP+ accepts electrons at the end of the ETC, becoming reduced to NADPH.
What is the difference between light and dark reaction?
The main difference between light and dark reaction is that
light reaction is the first stage of photosynthesis
, which traps light energy in order to produce ATP and NADPH whereas dark reaction is the second stage of photosynthesis, which produces glucose by using the energy form ATP and NADPH produced from the light …
What is produced in cyclic electron flow?
Under certain conditions, the photoexcited electrons take an alternative path called cyclic electron flow, which uses photosystem I (P700) but not photosystem II (P680). This process produces no NADPH and no O
2 ,
but it does make
ATP
. This is called cyclic photophosphorylation.
What happens if oxygen is not present to capture electrons?
If oxygen isn't there to accept electrons (for instance, because a person is not breathing in enough oxygen),
the electron transport chain will stop running
, and ATP will no longer be produced by chemiosmosis.
Why is oxygen an electron acceptor?
Cellular respiration is dependent on which of the following atoms? Explanation: In cellular respiration, oxygen is
the final electron acceptor
. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.
What is the process of donating electrons?
In biology, electron donors release an electron during
cellular respiration
, resulting in the release of energy. … The final result is the electron is donated to an electron acceptor. During this process (electron transport chain) the electron donor is oxidized and the electron acceptor is reduced.
Is NADH an electron donor?
NADH is
a strong electron donor
: because its electrons are held in a high-energy linkage, the free-energy change for passing its electrons to many other molecules is favorable (see Figure 14-9). It is difficult to form a high-energy linkage.
Is NADH an electron carrier?
NADH is the reduced form of the electron carrier
, and NADH is converted into NAD
+
. This half of the reaction results in the oxidation of the electron carrier.
Is glucose an electron donor?
In other words,
oxygen
is being used as the final electron acceptor. … This generates the most ATP for a cell, given the large amount of distance between the initial electron donor (glucose) and the final electron acceptor (oxygen), as well as the large number of electrons that glucose has to donate.
Where do the electrons finally end up?
The electrons finally end at
PSI
and are excited again by another photon to the second primary acceptor. The electrons end up on feredoxin. Feredoxin is an iron containing molecule that can carry electrons. Feredoxin delivers the electrons to the final enzyme called NADP+ reductase, whose job is to make NADPH.
Where do electrons end up in photosynthesis?
The electrons from water flow to
Photosystem II
, replacing the electrons lost by P680. Some of the hydrogen ions may be used to produce NADPH at the end of the electron transport chain, and the oxygen from the water diffuses out of the chloroplast and is released into the atmosphere through pores in the leaf.
What is ADP and NADP?
ADP – Adenosine diphosphate
.
NADP – Nicotinamide adenine dinucleotide phosphate
. NADPH – The reduced form of NADP. In the Light Dependent Processes i.e Light Reactions, the light strikes chlorophyll a in such a way as to excite electrons to a higher energy state.
