The role of photosystem II is to capture sunlight and initiate the process of photosynthesis by using light energy to split water molecules into oxygen, protons, and electrons. This process replenishes electrons in the photosynthetic electron transport chain and ultimately leads to the generation of ATP and NADPH for the Calvin cycle.
After sunlight hits photosystem 2, it excites electrons within photosystem 2. These electrons are then passed down an electron transport chain to photosystem 1, where they help generate ATP through a series of redox reactions.
ATP and NADPH are produced using the energy from photons hitting photosystem 2 during the light-dependent reactions of photosynthesis.
When a photon of light hits photosystem 2, it excites an electron within the reaction center of the photosystem. This electron is then transferred along an electron transport chain, resulting in the generation of ATP and the splitting of water molecules to release oxygen as a byproduct.
In photosystem 1, the role of the reaction center chlorophyll is to absorb photons and initiate the electron transport chain. It passes excited electrons to an electron acceptor, which then moves them through a series of electron carriers to produce NADPH. This process is essential for the conversion of light energy into chemical energy during photosynthesis.
ATP
Splitting H2o
Photosystem two produces O2, ATP, and NADP+
In photosystem 2- water(photolysis) In photosystem 1 - electron from photosystem 2
NADPH
Photosystem 2 is located in the thylakoid membrane of the chloroplasts, while Photosystem 1 is located downstream from Photosystem 2 in the thylakoid membrane. Both photosystems are important for light-dependent reactions during photosynthesis.
Photosystem 2 happens in photosynthesis before photosystem 1. However they are numbered in order of how they were discovered. Photosystem 1 was discovered before photosystem 2. In photosynthesis the order of them is 2 then 1. meaning that photosystem 1 was discovered 1st but photosystem 2 happens 1st in photosynthesis
Splitting H2O (Apex)
Splitting H2O (Apex)
Photosystems I and II are both in the thylakoid membranes of the chloroplast.
To make energy-carrier molecules like NADPH
Yes, photosystem 2 is a light-dependent process in photosynthesis. It absorbs photons to initiate the light-dependent reactions of photosynthesis, where it helps generate oxygen and produce ATP and NADPH.
to make energy-carrier molecules like NADPH Apex