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What happens to electrons when pigment in photosystem ll absorb light?
When pigments in Photosystem II absorb light, the energy excites electrons, raising them to a higher energy state. This energized electron is then transferred to a primary electron acceptor, initiating a series of redox reactions in the electron transport chain. This process ultimately leads to the synthesis of ATP and NADPH, which are crucial for the Calvin cycle in photosynthesis. As a result, Photosystem II plays a vital role in converting light energy into chemical energy.
What happens to pyruvate if electron acceptor is absent and What happens if electron acceptor is present?
If an electron acceptor is absent, pyruvate undergoes fermentation, resulting in the production of lactate in animals or ethanol and carbon dioxide in yeast, allowing for the regeneration of NAD+ and enabling glycolysis to continue. In contrast, if an electron acceptor is present, pyruvate enters the mitochondria and is oxidized in the citric acid cycle (Krebs cycle), leading to the production of ATP, NADH, and FADH2 through aerobic respiration. This process is more efficient in energy production compared to fermentation.
What happened to the energyof an electron as it goes farther from the nucleus?
if an electron gains enough energy it jumps to a higher energy level. when this happens the atom is in an "excited" state.
Which photosystem is used first in 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
Where does the plant get its energy from photosynthesis?
1 Light and water are absorbed 2 Water splits into hydrogen, oxygen, and electrons 3 The electrons get excited by the light energy and shoot up to the next level (the electron acceptor) 4 the electron comes back down and produces ATP 5 The electrons get excited again and shoot up to the electron acceptor 6 they come down and make NADPH 7 ATP and NADPH (making a sugar that is not yet glucose, but G3P) from the light reactions provide energy that are used to convert G3P to glucose and other materials
What happens to electrons when pigments in photosystem absorb lights?
Photosystem's electron travel through the electron transport chain(etc) where ATP is produced and then back to the photosystem. In non-cyclic photophosphorylation, Photosystem II electron then is absorbed by photosystem I, photosystem I electron used to form NADPH and photosystem II gets its electron from photolysis of water. For you unfortunate children using Novanet: They move through an electron transport chain to photosystem 1.
WHAT HAPPENS IN THE PHOTOSYSTEM 2 protein when it is hit by a photon of light?
In photosystem II, the photon of light is absorbed by a pigment molecule, which causes an electron to become excited. This electron is then passed through a series of electron carrier molecules, creating a flow of electrons used to generate ATP and NADPH during the light-dependent reactions of photosynthesis.
What happens to electrons when pigment in photosystem ll absorb light?
When pigments in Photosystem II absorb light, the energy excites electrons, raising them to a higher energy state. This energized electron is then transferred to a primary electron acceptor, initiating a series of redox reactions in the electron transport chain. This process ultimately leads to the synthesis of ATP and NADPH, which are crucial for the Calvin cycle in photosynthesis. As a result, Photosystem II plays a vital role in converting light energy into chemical energy.
What happens when a photon of light hits photosystem 2?
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.
What happens when a photon of light hits photosyestem ll?
When a photon of light hits photosystem II, it excites an electron in the reaction center of the photosystem. This electron is then passed along a series of proteins in the electron transport chain, creating a flow of electrons that drives ATP production through chemiosmosis. Additionally, the photon splitting water molecules into oxygen, protons, and electrons, which is essential for the plant to produce oxygen and obtain electrons to replace the excited ones.
What did Planck say about energy and electron?
He said that electrons can become excited and begin to hop energy levels; when this happens an electron is in the excited state.
What happens to pyruvate if electron acceptor is absent and What happens if electron acceptor is present?
If an electron acceptor is absent, pyruvate undergoes fermentation, resulting in the production of lactate in animals or ethanol and carbon dioxide in yeast, allowing for the regeneration of NAD+ and enabling glycolysis to continue. In contrast, if an electron acceptor is present, pyruvate enters the mitochondria and is oxidized in the citric acid cycle (Krebs cycle), leading to the production of ATP, NADH, and FADH2 through aerobic respiration. This process is more efficient in energy production compared to fermentation.
What happens in the photosystem when it is hit by a photon of light?
When a photon of light hits the photosystem, it excites an electron in the reaction center of the photosystem. This electron is then passed along a series of proteins called the electron transport chain, generating ATP and reducing power in the form of NADPH. These energy carriers are used in the light-dependent reactions of photosynthesis to convert carbon dioxide into glucose.
What happens in photopigments when they absorb photon energy?
Photosystem's electron travel through the electron transport chain(etc) where ATP is produced and then back to the photosystem. In non-cyclic photophosphorylation, Photosystem II electron then is absorbed by photosystem I, photosystem I electron used to form NADPH and photosystem II gets its electron from photolysis of water. For you unfortunate children using Novanet: They move through an electron transport chain to photosystem 1.
What happens in the photosystem protein when it is hit by a photon of light?
When a photosystem protein is hit by a photon of light, it excites an electron within the pigment molecules in the protein. This electron is then passed along a series of molecules in the photosystem, creating a flow of electrons that drives the conversion of light energy into chemical energy in the form of ATP and NADPH.
What happened to the energyof an electron as it goes farther from the nucleus?
if an electron gains enough energy it jumps to a higher energy level. when this happens the atom is in an "excited" state.
Which photosystem is used first in 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
