What is a photosystem and where is it located within the plant cell?

• A. A photosystem is a protein complex located in the thylakoid membrane.
• B. A photosystem is a lipid located in the chloroplast envelope.
• C. A photosystem is a carbohydrate located in the cytoplasm.
• D. A photosystem is a pigment molecule located in the stroma.

Answer: (A)