where does the light reaction of photosynthesis take place

The light reactions take place inside the thylakoids of chloroplasts. Pigment molecules inside photosystem II and photosystem I absorb light energy from the sun. The light reactions produce chemical energy in the form of NADPH and ATP.

Where does light-dependent reaction take place?

Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions. The chlorophyll in the plants absorb sunlight and transfers to the photosystem which are responsible for photosynthesis.

Where do the light-dependent reactions take place quizlet?

In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.

Where does the dark reaction of photosynthesis take place?

The light reactions of photosynthesis take place in the thylakoid membrane, whereas the dark reactions are located in the chloroplast stroma.

Where do the light-dependent reaction and the Calvin cycle occurs in the chloroplast?

Solution : (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 reaction in photosynthesis?

During the light-dependent stage (“light” reactions), chlorophyll absorbs light energy, which excites some electrons in the pigment molecules to higher energy levels; these leave the chlorophyll and pass along a series of molecules, generating formation of NADPH (an enzyme) and high-energy ATP molecules.

Where does the light reaction takes place in chloroplast grana of stroma?

(i) Light reactions occur in grana thylakoids whereas dark reactions occur in stroma of chloroplasts.

What is the part of the chloroplast where the light reaction does occur in presence of visible light?

Light is entrapped by chlorophyll pigment that is present in granum part of chloroplast. Thus light reaction occurs in granum part of chloroplast.

Which of the following take place during the light reactions?

During the light reactions, water is used and oxygen is produced. These reactions can only occur during daylight as the process needs sunlight to begin.

Which process occurs during the light-dependent reaction of photosynthesis?

The two main events i.e., photophosphorylation and photolysis of water. are occurred in the light-dependent reaction in photosynthesis. In the photophosphorylation, the energy rich ATP is formed by the addition of phosphate in ADP. The photophosphorylation is of two types cyclic and non-cyclic.

Where does the Calvin cycle take place?

In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized.