Photosynthesis Quiz

What is the primary role of chlorophyll in the light-dependent reactions of photosynthesis?

• To absorb sunlight and excite electrons

• To split water molecules into oxygen and hydrogen

• To synthesize ATP from ADP and inorganic phosphate

• To transport electrons across the thylakoid membrane

Which complex is responsible for splitting water molecules during the light-dependent reactions?

• Oxygen-evolving complex

• Cytochrome b6f

• Photosystem I

• ATP synthase

What is the function of plastoquinone in the electron transport chain?

• To excite electrons using sunlight

• To transfer electrons and protons across the thylakoid membrane

• To synthesize NADPH from NADP+

• To produce ATP from ADP

How is the proton gradient used in the light-dependent reactions?

• To excite electrons in photosystem II

• To split water molecules

• To drive the synthesis of ATP

• To convert NADP+ to NADPH

What is the significance of NADPH in photosynthesis?

• It acts as a mobile electron carrier

• It stores energy for the light-independent reactions

• It splits water molecules into oxygen and hydrogen

• It absorbs sunlight to excite electrons