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During photosynthesis photons raise electrons to higher energy levels. These excited electrons belong to what compound?
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What compounds are affected by photons of light?
Certain plant molecules are calledpigments are chemically affected by photons of light from the visible region of the electromagnetic spectrum. Electrons within pigment molecules are excited to higher energy levels when bombarded by certain wavelengths of light. This produces an unstable high-energy state that can be harnessed by plants. In this way, energy from the sun powers photosynthesis.
What does energy come from to make nadaph in light reactions?
From electrons in photosystem I that are excited to a higher energy state by photons of light. Then NADP + is reduced to become NADPH
Are electrons are energized twice during photosynthesis?
Yes because there are two photosystems (clusters of chlorophyll) which is where the sunlight is absorbed from, the electrons are energized at both times because sunlight contains photons which are the molecules that energize the electrons in the first place
When light is absorbed by chlorophyll molecules the excited electrons leave the molecule What is the source of electrons that makes chlorophyll stable again?
Additional electrons used to stabilize the photosystems come from photolysis, the splitting of water using photons of light. This process yields 2 electrons per molecule of water.
How do electrons gain in energy in photosystem 1?
they absorb photons from sunlight
When excited electrons radiate energy the amount of energy given off is equal to?
Photons
What is the role of chlorophyll a?
Chlorophyll is an important biomolecule. Its role is critical in photosynthesis, the process that allows plants to absorb energy from light.
When electrons of an excited atom falls back to lower levels there is an emission of energy that produces what?
The electrons emit photons of light equal in energy to the energy that was absorbed.
When the electrons of an excited atom fall back to lower levels there is an emission of energy that produces what?
The electrons emit photons of light equal in energy to the energy that was absorbed.
What compounds are affected by photons of light?
Certain plant molecules are calledpigments are chemically affected by photons of light from the visible region of the electromagnetic spectrum. Electrons within pigment molecules are excited to higher energy levels when bombarded by certain wavelengths of light. This produces an unstable high-energy state that can be harnessed by plants. In this way, energy from the sun powers photosynthesis.
What happens when the electrons relax?
As excited electrons drop back to lower energy levels in the atom, photons having the energy of the difference between the two electron energy levels are emitted from the atom.
Are light waves the result of accelerating electrons?
I would describe it as vibrating electrons rather than accelerating electrons. Added: One could more accurately call it photons released when electrons return from an excited state to a lower energy configuration.
When excited electrons return to lower energy levels what is released?
Energy is emitted when an electron moves from a higher energy level to a lower energy level.
What does energy come from to make nadaph in light reactions?
From electrons in photosystem I that are excited to a higher energy state by photons of light. Then NADP + is reduced to become NADPH
Do photons conduct electricity?
No. Electricity is the movement of electrons, and photons have no electrons to move. Photons are the gauge particles for the electromagnetic force, but that's a different concept.
Are electrons are energized twice during photosynthesis?
Yes because there are two photosystems (clusters of chlorophyll) which is where the sunlight is absorbed from, the electrons are energized at both times because sunlight contains photons which are the molecules that energize the electrons in the first place
How can photons be converted to chemical energy?
By photosynthesis.
