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What causes the electrons to become excited and move into the electron transport chain?
Wiki User
∙ 13y ago
In photosynthesis, the electrons from the chlorophyll are excited by the sunlight
Wiki User
∙ 13y ago
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Why does a pure chlorophyll flouresces when exposed to light?
Chlorophyll molecules become excited when photons of light strike them. This excitement results in valence electrons moving to a higher energy level. The electrons are transferred through many pigments called antenna pigments until they reach a pigment called the Reaction Center. Normally, the Reaction Center would pass these electrons on to an electron transport chain, but, since pure chlorophyll does not have any electron transport chains, the electrons, which are highly unstable, simply return to their original energy level. Energy is released as the return, and this energy is what we see as fluorescent light.
What does it mean for an electron to be excited?
The electron starts to move faster.Not a bad try... but to rephrase it- the electron, when excited, jumps to a lower energy orbital and gives off a photon of a certain frequency. this helps it lose the 'excess' energy and re- stabilize.
What heppens when light strikes green plant pigments?
electrons become excited
How would blocking of the electron transport chain affect a plant?
Electrons become diverted from the transport chain, releasing excess energy into the cell and destroying cell membranes. Another herbicide action is creation of superoxide radical which is highly reactive.
What charge does a neutral atom become when an electron is added?
It will become negative by electron addition, because electrons are negatively charged, -1. It is then called an ion.
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.
Electrons that have been excited by light energy absorbed by a chlorophyll molecule?
Some of the electrons become excited. means that they have comparatively more energy. the flow of energy takes place through these excited electrons. these are transferred form the reaction center chlorophyll to the primary electron acceptors.
What molecule does oxygen became a part of at the and of the electron transport chain?
The oxygen combines with two hydrogens and the requisite electrons to become water.
What happens as the electrons are passed along the electron carries in the electron transport chain?
Hydrogen ions are pumped across the mitochondria's inner membrane producing a concentration gradient
Does the hydrogen serve as the final electron acceptor of the electron transport chain?
Oxygen is the final electron acceptor of the electron transfer chain. Hydrogen ( protons ) come down their concentration gradient and through the ATP sythase making ATP. Then they, with the electrons oxygen accepts, become H2O.
Why does a pure chlorophyll flouresces when exposed to light?
Chlorophyll molecules become excited when photons of light strike them. This excitement results in valence electrons moving to a higher energy level. The electrons are transferred through many pigments called antenna pigments until they reach a pigment called the Reaction Center. Normally, the Reaction Center would pass these electrons on to an electron transport chain, but, since pure chlorophyll does not have any electron transport chains, the electrons, which are highly unstable, simply return to their original energy level. Energy is released as the return, and this energy is what we see as fluorescent light.
What are the 2 energy carriers that enter the electron transport chain and their energy can be transferred to ATP?
FAD and NADHThe pick up electrons, with attendant protons, to carry into the transport chain and become,FADH and NADH2
What does it mean for an electron to be excited?
The electron starts to move faster.Not a bad try... but to rephrase it- the electron, when excited, jumps to a lower energy orbital and gives off a photon of a certain frequency. this helps it lose the 'excess' energy and re- stabilize.
What would happen if there were extra electrons in an atom?
when electron jump from lower energy level to high energy level
What heppens when light strikes green plant pigments?
electrons become excited
Electrons in pigment molecules become excited when exposed to?
Ultraviolet Light
What do metals become after they accept electrons?
Electron donors.
