What is the light-independent reaction process?
What is the light-independent reaction process?
The light independent process (also called dark reactions or the Calvin-Benson cycle) takes place in the stroma of the chloroplast. Carbon dioxide is modified by series of chemical reactions to form carbohydrates. The energy for these reactions comes from ATP and NADPH generated during the light dependent process.
Which best describes light-independent reactions?
Which best describes light-independent reactions? They are the first stage of photosynthesis. They utilize the energy stored in ATP and NADPH.
What is light dependent and independent reactions?
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
Where do light-independent reactions occur during photosynthesis?
Photosynthesis occurs in the chloroplasts, the light-dependent reactions are located on the innermost membrane of chloroplasts called thylakoid membrane and light-independent reactions occur in the cytoplasm of the chloroplasts called stroma [17].
What is another name for a light-independent reaction?
These reactions may be known as Calvin cycle or dark reactions.
What is another name for light-independent reactions?
Another term, the Calvin cycle, is named for the man who discovered it, and because these reactions function as a cycle. Others call it the Calvin-Benson cycle to include the name of another scientist involved in its discovery. The most outdated name is dark reactions, because light is not directly required (Figure 1).
Where are light-independent reactions?
stroma
Photosynthesis occurs in the chloroplasts, the light-dependent reactions are located on the innermost membrane of chloroplasts called thylakoid membrane and light-independent reactions occur in the cytoplasm of the chloroplasts called stroma [17].
What is the product of light-independent reaction?
The light-independent reaction’s reactants are carbon dioxide, NADPH and ATP. Its products are glucose, NADP+, ADP, and inorganic phosphate.
Who discovered light-independent reactions?
The cycle was discovered in 1950 by Melvin Calvin, James Bassham, and Andrew Benson at the University of California, Berkeley by using the radioactive isotope carbon-14.
What is the function of the light dependent reaction?
The ‘light-dependent reactions’ harvest light energy and use that energy to transport electrons through an electron transport chain embedded in the thylakoid membrane. Chlorophyll is the primary photosynthetic pigment; hence, thylakoid membranes are deep green in color.
What is the importance of light-independent reactions?
The light-independent reactions of photosynthesis use the ATP and NADPH from the light-dependent reactions to fix CO2 into organic sugar molecules.
Where do light-independent reactions occur?
What is the product of light independent reaction?
Where does light independent reaction occur?
What are the steps of light dependent reactions in photosynthesis?
(1st Time) Energy is absorbed from the sun.
What are the steps of the light dependent reaction?
what are the steps for light dependent reactions? These reactions occur within specialised membrane discs within the chloroplast called thylakoids and involve three steps: Excitation of photosystems by light energy. Production of ATP via an electron transport chain. Reduction of NADP+ and the photolysis of water.
What happens during light dependent reaction?
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
What are the reactants of light dependent photosynthesis?
Photosynthesis is the process plants use to make their own food.
