Where does the light phase of photosynthesis take place?
thylakoid membranes
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. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.
Which phase of photosynthesis is light-dependent phase?
Figure: The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.
Where does the light-dependent phase of photosynthesis occur quizlet?
The light-dependent reactions take place in the thylakoid membrane, and the Calvin cycle takes place in the stroma.
Where does the light-independent reaction take place?
stroma of chloroplasts
The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].
How are the light dependent and light-independent phases linked?
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 the light dependent reaction and the Calvin cycle occurs in the chloroplast?
(i) The light dependent reaction refers to the light reaction of photosynthesis or Hill reaction and occurs in the grana of chloroplast. (ii) The Dark reaction (Calvin cycle) occurs in the stroma of chloroplast.
What is light independent in photosynthesis?
Light-independent reaction is a series of biochemical reactions in photosynthesis not requiring light to proceed, and ultimately produce organic molecules from carbon dioxide. The energy released from ATP (produced during the light reactions) drives this metabolic pathway.
In what way are the light dependent and light?
The light-independent reactions release energy, and the light-dependent reactions require energy. The light-dependent reactions pass electrons through an electron transport chain to the light-independent reactions.
Where does Calvin cycle take place?
stroma
Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts).
Where does the first stage of photosynthesis occur quizlet?
*The first stage of photosynthesis is called the light-dependent reactions and occurs in the thylakoids. This is where chlorophyll and other light absorbing pigments capture energy from sun. *The second stage of photosynthesis is called the light-independent reactions and occurs in the stroma.
Which events take place in the light-dependent reactions of photosynthesis?
The events occurring in the light reaction of the photosynthesis are: Absorption of sunlight by the chlorophyll and release of the electron to the carriers. Photolysis of water to provide the electron to the chlorophyll. The release of molecular oxygen due to the photolysis of water.
Where do the light-dependent reactions of photosynthesis take place?
The light-dependent reactions of photosynthesis take place within the thylakoids. These reactions occur when the pigment chlorophyll, located within the thylakoid membranes, captures energy from the sun (photons) to initiate the breakdown of water molecules. 2. The light-dependent reactions convert light energy into chemical energy.
What happens in the light phase of photosynthesis?
The light phase is the first phase of photosynthesis. It refers to the conversion of solar energy into chemical energy. Light is absorbed by complexes made up of chlorophylls and proteins called photosystems, which are located in the chloroplasts.
What is the first part of photosynthesis called?
In the first part of photosynthesis, the light-dependent reaction, pigment molecules absorb energy from sunlight. The most common and abundant pigment is chlorophyll a. A photon strikes photosystem II to initiate photosynthesis.
How is light energy converted to chemical energy during photosynthesis?
Light energy is converted to chemical energy during the first stage of photosynthesis, which involves a series of chemical reactions known as the light-dependent reactions. In this article, we’ll explore the light-dependent reactions as they take place during photosynthesis in plants.