Photosynthesis Test

What is the first thing that happens during light reaction?

Light energizes PSII, H20 breaks down

Main goal of photosynthesis= to create sunlight into food (glucose) for the plant

What happens second during light reaction?

electron from H20 travels ETC (Electron Transport Chain)

Electron pulls hydrogen into the chloroplast and then pushed back out to make ATP

What happens third during light reaction?

electron losses energy, drives H2 into lumen

While the electron is losing energy, light and heat are also being lost and travels to the electron transport chain

What happens fourth during light reaction?

electron needs energy, gets energy from PSI

What happens fifth during light reaction?

electron is taken up by NADP+ to create NADPH (carrys electrons and is also used in the Calvin cycle)

What is the sixth thing that happens in light reaction

H from H20 drives ATP synthesis

The light reaction is used to fuel the dark reaction

Hydrogen as a result of the breaking down of water, hydrogen builds up on the outside of the chloroplast

What are the final products that produce from light reaction?

NADPH and ATP

What is the Calvin cycle?

Its a cycle that plants use to turn carbon dioxide from the air into sugar which helps the plant grow

Its also known as the dark reaction

What is the difference between dark reaction and light reaction?

The dark reaction is responsible for making food and light reaction gives dark food