The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier
NADPH
.
What is the electron carrier in photosynthesis quizlet?
An electron carrier involved in photosynthesis. Light drives electrons from chlorophyll to NADP+, forming
NADPH
, which provides the high-energy electrons for the reduction of carbon dioxide to sugar in the Calvin cycle.
What is the electron carrier in photosynthesis?
Nicotinamide adenine dinucleotide phosphate
, an energy carrier molecule produced in the light reactions of photosynthesis. NADPH is the reduced form of the electron acceptor NADP
+
. At the end of the light reactions, the energy from sunlight is transferred to NADP
+
, producing NADPH.
Where is the electron transport chain in photosynthesis?
In photosynthetic eukaryotes, the electron transport chain is found on
the thylakoid membrane
. Here, light energy drives the reduction of components of the electron transport chain and therefore causes subsequent synthesis of ATP.
What is the electron carrier in chloroplast?
Electron flow during photosynthesis in the thylakoid membrane. The mobile electron carriers in the chain are
plastoquinone
(which closely resembles the ubiquinone of mitochondria), plastocyanin (a small copper-containing protein), and ferredoxin (a small (more…)
Is NADP an electron carrier?
NADP
+
functions as
a carrier
to transfer high energy electrons from chlorophyll to other molecules.
Is Plastocyanin an electron carrier?
Plastocyanin is the
long-range electron carrier between photosystem II
and photosystem I in plants.
What is the main electron carrier in cellular respiration?
There are two types of electron carriers that are particularly important in cellular respiration:
NAD +start superscript
, plus, end superscript (nicotinamide adenine dinucleotide, shown below) and FAD (flavin adenine dinucleotide). Chemical structures of NAD+ and NADH.
How is ADP converted to ATP?
ADP is combined with a phosphate to form ATP in the
reaction ADP+Pi+free energy→ATP+H2O
. The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.
What happens to the ATP generated in the light-dependent reactions of photosynthesis quizlet?
What happens during light-dependent reactions? Light-dependent reactions use
energy from sunlight to produce oxygen and convert ADP and ANDP into the energy carriers ATP and NADPH
. series of electron carrier proteins that move high-energy electrons during the ATP-generating reactions.
What is the main purpose of the electron transport chain in photosynthesis?
Photosynthetic electron transport
converts free and abundant solar energy into reducing power and chemical energy for producing biomass and biofuels through transferring electrons sequentially from H
2
O
through Photosystem II and then Photosystem I to NADP
+
in chloroplasts of higher plants and photosynthetic algae or in …
What happens during the electron transport chain in photosynthesis?
Chlorophyll, which is present in the photosystems, soaks up light energy. The energized electrons are then used to make NADPH. The electron transport chain is a series of molecules that accept or donate electrons easily. … When
hydrogen ions move through the protein and down the electron transport chain
, ATP is created.
Does the electron transport chain require oxygen?
Explanation:
Oxygen is the final electron acceptor in the electron transport chain
, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt.
Is plastoquinone a hydrogen carrier?
Therefore, the plastoquinone pool might act as
a pump for a vectorial hydrogen
(H+ + e-) transport. The molecular mechanism is discussed. The differences between this hydrogen pump of chloroplasts and the proton pump of Halobacteria are outlined.
What are the end products of light reaction?
- Hint: The process of using the energy in sunlight to make food (glucose) is known as photosynthesis. …
- Complete answer: …
- Therefore, the end products are ATP and NADPH.
- Note: The ATP and NADPH from the light-dependent reactions are used to make sugars in the Calvin cycle.
Does photosynthesis produce ATP?
The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons
return through ATP synthase
to make ATP.
