Question

The light reaction in a photochemical phase takes place in which of the following locations?

• A. Thylakoids
• B. Stroma
• C. Outside the chloroplast
• D. Both stroma and thylakoids

Answer 1

The correct option is A

Thylakoids

Light reaction is an absorption of light by the chlorophyll molecules and using that energy, the bond between the hydrogens and oxygen of water molecule is broken. Since light reaction involves the chlorophyll molecules, it takes place in the membrane of thylakoids.