Light-dependent reactions involve electron transporter chain. 1) chloroplasts. 2) electrons. 3) electrons 4) protons or hydrogen ions 5) thylakoid space.
Light-dependent reactions involve the photosynthetic stage that depends on sunlight to occur.
It takes place in chloroplasts.
Oxygen is released, while ATP and NADPH are produced. Both of them are used during light-independent reactions.
1. Luminous energy is trapped by chlorophyll in Photosystem II.
2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
4. When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules.
5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
6. When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II.
7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
8. The released energy is used to produce ATP molecules.
9. Hydrogen ions go back from the stroma to the thylakoid compartment.
The light reactions occur in the _chloroplasts__.
Absorption of blank boosts _electrons_ to a higher-energy state.
The energy of light is used to pump __electrons__ from water through photosystem II, an electron transport chain, and photosystem I to \rm NADPH.
During energy-releasing redox reactions in the electron transport chain, _protons__ are pumped into the __thylakoid space__.
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