Table of Contents
How many photons are needed for photosynthesis?
Eight photons
– Eight photons of light are required to evolve one molecule of oxygen during photosynthesis. – As we already know, photosynthesis occurs in two stages- light-dependent reactions and light-independent reactions. – Light-dependent reactions require light as a source of energy.
How many photons does it take to completely oxidize 2 molecules of water to form O2?
Four photons
Four photons are absorbed by photosystem II to split the water molecules, form molecular oxygen, and release four electrons.
How many photons does it take to make Nadph?
Statistics 8 photons are used per 1 O2 produced. For every O2 produced 4 ATP are made and 2 NADPH.
How many photons does it take to make a glucose molecule?
To make a glucose molecule, it is needed 6 CO2, therefore it is need at least 48 photons.
Does photosystem 2 absorb photons?
In (b) photosystem I, the electron comes from the chloroplast electron transport chain. The two photosystems absorb light energy through proteins containing pigments, such as chlorophyll. The light-dependent reactions begin in photosystem II.
What is a photon in photosynthesis?
photon: a distinct quantity or “packet” of light energy. photosystem: a group of proteins, chlorophyll, and other pigments that are used in the light-dependent reactions of photosynthesis to absorb light energy and convert it into chemical energy.
How many photons are involved in photolysis?
2e−,2H+ and 8 photons.
How many quanta do I need?
Number of oxygen molecules released per photon or quantum of light is known as quantum yield. Its value is 1/8 to 1/10. In other words evolution of one molecule of oxygen or consumption / fixation of one molecule of CO2 requires 8 – 10 quanta.
How many quanta of light are required for formation of 5 NADPH?
If we take above NCERT diagram then 4 quanta are needed.
How many photons are in a O2?
8 photons
Because 8 photons are required per O2 produced, there are 300 chlorophyll molecules per photon absorbed.
How many photons are in the Calvin cycle?
– Calvins cycle requires 9ATP and 6 NADPH per G3P formed. This means we need about 48 photons per Glucose formed.
How many quanta of light are required per nadph2 formation?
The minimum quantum requirement is usually calculated to be eight photons per two moles each of NADPH and ATP (minimum quantum requirement is two light quanta per electron, then eight light quanta are used to drive the oxidation of water: 2 H2O → O2 + 4 H+ + 4 e–).