KC: Photosynthesis - LDR

Front

What is the primary role of sunlight in photosynthesis?

Back

Sunlight is used to break down water during the light-dependent reactions.

Front

What is the overall equation for photosynthesis?

Back

CO₂ + light + H₂O → O₂ + Sugar

Front

Which of the following is NOT a product of the light reactions: ATP, NADPH, or Glucose?

Back

Glucose is NOT a product of the light reactions.

Front

What is the significance of creating a concentration of H+ in the thylakoid space?

Back

It allows H+ to diffuse through ATP synthase to create ATP.

Front

What happens to electrons when light strikes chlorophyll molecules in photosystems I and II?

Back

Light causes electrons to get excited (gain energy) and travel down the electron transport chain.

Front

What are the two main stages of photosynthesis?

Back

The two main stages are the light-dependent reactions and the light-independent reactions (Calvin cycle).

Front

Where do the light-dependent reactions of photosynthesis occur?

Back

They occur in the thylakoid membranes of the chloroplasts.

Front

What are the main products of the light-dependent reactions?

Back

The main products are ATP and NADPH.

Front

What is the function of ATP synthase in photosynthesis?

Back

ATP synthase synthesizes ATP from ADP and inorganic phosphate using the energy from H+ diffusion.

Front

What is the role of water in the light-dependent reactions?

Back

Water is split to provide electrons, protons, and oxygen.