What happens in light and dark reactions of photosynthesis?
The light reactions of photosynthesis involve light-driven electron and proton transfers, which occur in the thylakoid membrane, whereas the dark reactions involve the fixation of CO2 into carbohydrate, via the Calvin–Benson cycle, which occurs in the stroma (Figure 3).
Does photosynthesis occur in the light and dark?
Just like humans and animals, plants need energy to survive and thrive, and they make their food themselves via a process called photosynthesis, which occurs only in the presence of light.
What happens during the photo reactions of photosynthesis?
What happens during “photo” reaction? Plants capture the light energy and temporarily saved in energy-storage molecule, and during this process, water molecules split and produce oxygen.
How is dark stage Dependant on the light stage of photosynthesis?
IN SUMMARY: This diagram summarises the Light and Dark Stages’ dependence on each other. The light stage produces NADPH and ATP which is used in the dark stage. The dark stage sends ADP, P, and NADP+ back to the thylakoids for use in the light stage.
What is dark photosynthesis?
The dark stage of photosynthesis is an intricate process where NADPH and ATP are used to produce carbohydrate molecules (or sugars). Unlike the light phase, it can happen in light or darkness. This light phase is necessary for the following phase, the dark phase, which doesn’t necessarily need the presence of light.
What is dark reaction photosynthesis?
DARK REACTION. Dark Reaction – In the dark reaction there is the fixation of carbon-dioxide. During dark reaction, energy released from ATP, NADPH (products of the light reaction) drives the fixation of carbon from carbon-dioxide in the carbon compound (carbohydrates).
What is dark reaction of photosynthesis?
Dark Reaction – In the dark reaction there is the fixation of carbon-dioxide. During dark reaction, energy released from ATP, NADPH (products of the light reaction) drives the fixation of carbon from carbon-dioxide in the carbon compound (carbohydrates).
Does photosynthesis occur in dark?
The dark stage of photosynthesis is an intricate process where NADPH and ATP are used to produce carbohydrate molecules (or sugars). Unlike the light phase, it can happen in light or darkness.
What is light reaction 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 the dark reactions of photosynthesis?
What is a dark reaction? In the dark reaction, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose. It takes place in the stroma of the chloroplast.
What is dark reaction and light reaction?
What are the differences between light and dark reactions?
Dark reaction is catalyzed by various enzymes. 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 events is a part of the light reaction of photosynthesis?
The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.
What happens during the light and dark reaction?
During the light reactions of photosynthesis, light energy from the sun is captured and used to make ATP and NADPH. During the dark reactions, ATP, NADPH, and carbon dioxide combine to make glucose and other compounds . Food energy is stored in chemical bonds during photosynthesis.2
What are the reactants of light dependent photosynthesis?
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
