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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.
When photopigments absorb photon energy, it causes a conformational change in the pigment molecule. This change triggers a series of chemical reactions that eventually lead to the generation of an electrical signal, which is then transmitted to the brain via the optic nerve. This process is crucial for the visual system to perceive light and color.
Photopigments release energy when they come into contact with light. This causes a second messenger system in the cell to send the sensation of a certain color of light.
the photopigment chlorophyll, when absorbing a photon, gets an electron knocked out of orbit by it. This electron follows an electron transport system which is the first step in the photosynthetic creation of energy in the form of ATP
I'm still trying to figure out what happens to the photopigment melanin when it absorbs a photon, so far i can only tell that heat gets dissipated, though there is evidence that different types of melanin will induce apoptosis (early stage cell death) in surrounding cells.
When chlorophyll or accessory pigments absorb photons it causes the electrons from chlorophyll A to be picked up by an acceptor molecule and sent through the cytochrome system. Electrons from chlorophyll B and accessory pigments replace the electrons of chlorophyll A.
Chlorophyll is a pigment found in plants.
When photon is incident on chlorophyll, it gets excited so to speak and release electron to high energy state. The excited electron is then captured by different electron carriers.
Pigments absorb light energy. The energy makes their electrons spin faster. In chlorophyll an electron gets so much energy that it is flung out of its orbit and can be "grabbed" by a protein to be passed along and carry the energy further.
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What happens to a photon when it hits a leaf?
When a photon hits a leaf, it may be absorbed by chlorophyll molecules, which are specialized pigments that can capture the energy of the photon and initiate photosynthesis. This absorbed energy is then used to drive chemical reactions that convert carbon dioxide and water into glucose and oxygen.
When a pigment molecule absorbs a photon one of its electrons?
When a pigment molecule absorbs a photon, one of its electrons gets excited to a higher energy state. This causes a change in the molecule's electronic structure, leading to various downstream effects such as triggering a chemical reaction in photosynthesis or generating an electrical signal in vision.
What happens when a photon from sunlight strikes a chlorophyll a molecule?
When a photon from sunlight strikes a chlorophyll a molecule, it excites an electron within the molecule, moving it to a higher energy state. This electron is then passed through a series of molecules in the photosystem, ultimately leading to the conversion of light energy into chemical energy in the form of ATP and NADPH, which are used in the process of photosynthesis.
Light travels to plants as tiny packets of radiant energy called?
photons.
Describe how energy from sunlight is transfered to ATP and NADPH and what are they used for?
During photosynthesis, sunlight is captured by chlorophyll molecules in plants and converted into chemical energy. This energy is used to drive a series of reactions that produce ATP and NADPH molecules, which act as energy carriers in the cell. ATP is used as a source of energy for various cellular processes, while NADPH is used in the production of sugars and other organic molecules.
What happens to an atom when it loses an electon?
they jump to a higher energy level
Why is glass transparent?
When the electrons in molecules are unable to absorb the energy of incident photon, the photon continues along its path. This happens in the case of glass, even though glass is not 100 percent transparent, as some of the photon energy is absorbed by the glass electrons.
What determines which photon an atom can absorb or emit?
An atom can absorb or emit photons based on its energy levels and electronic structure. When a photon energy matches the energy difference between two energy levels in the atom, it can be absorbed or emitted. This is governed by the quantized nature of energy levels in atoms.
What happens when water absorbs an IR photon?
When water absorbs an infrared (IR) photon, the molecular vibrations of the water molecules increase as they absorb the energy from the photon. This increase in vibrational energy causes the water molecules to move more vigorously and increase in temperature.
What pigment molecules absorb a photon and pass the energy to the reaction-center complex?
chlorophyll
Can free electron absorb photon?
Yes, free electrons can absorb photons. When a photon interacts with a free electron, it can transfer its energy to the electron, causing it to move to a higher energy level or even be ejected from the material. This process is the basis for various phenomena such as photoelectric effect and Compton scattering.
Can the electron in the ground state of hydrogen absorb a photon of energy 13.6eV and greater than 13.6eV?
yes , the electron in the ground state of the hydrogen atom will absorb a photon of energy 13.6ev but not greater than 13.6 ev . because 13.6 ev is the energy which excites the hydrogen atom
Could an atom emit one photon of blue light after absorbing only one photon of red light?
No, an atom typically emits photons of the same or lower energy than the absorbed photons. In this case, a red photon has lower energy than a blue photon, so it's not possible for an atom to absorb a red photon and emit a blue photon.
If an electron is in an excited state it must lose energy when it falls to a lower state. What happens to the energy that is lost?
The energy that is lost when an electron falls to a lower state is emitted as a photon of light. This process is known as photon emission, and the energy of the emitted photon corresponds to the energy difference between the initial and final states of the electron.
When sunlight excites electrons how do the electrons change?
Depending on the energy (frequency) of the specific photon hitting the electron, one of three events happens: nothing, the electron is excited, or the electron leaves the atom. If the energy of the photon very high, the electron can absorb the energy and escape the nucleus' pull. This is called ionization. If the energy of the photon lines up with the energy spacing in the atoms energy levels, the electron will move to a higher energy state, becoming excited. The electron then returns to its original energy level, releasing the energy as light. If the energy of the photon does not fall into one of these categories, the electron does not interact with it. In terms of actually changing the electron, it only changes in energy, not any other property.
How can an atom of size 1angstrom can absorb a photon of 5000 wavelength?
An atom can absorb a photon of 5000 wavelength through the process of photon absorption, where the energy of the photon is transferred to the atom, promoting an electron to a higher energy state within the atom. The size of the atom, in this case 1 angstrom, does not limit its ability to absorb the photon, as the interaction is determined by the energy of the photon and the energy levels of the atom.
How light is absorb?
By the agitation of an electron by a photon.
