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What else can I help you with?
What is an organism that relies on photons to excite electrons within its membranes?
this should help with the Bio take-home test...i know what you're going through. Organisms that obtain energy from light are called phototrophs, and those that obtain energy from chemicals are called chemotrophs. Organisms that need only the inorganic compound CO2 as a carbon source are called autotrophs . In contrast, heterotrophs require at least one organic nutrient—such as glucose—to make other organic compounds.
How does the light dependent process begin?
Photons of light strike chlorophyll molecules and excite electrons.
What is required to excite the electrons of the chlorophyll and start the cyclic and non-cyclic phosphorylation?
To excite the electrons of chlorophyll and initiate cyclic and non-cyclic photophosphorylation in photosynthesis, light energy is required. The energy from photons of light is absorbed by chlorophyll molecules in the thylakoid membranes of chloroplasts, leading to the excitation of electrons and the subsequent transfer of these electrons through the electron transport chain. This process generates ATP and NADPH, which are essential for the synthesis of carbohydrates during the light-dependent reactions of photosynthesis.
What is produced when using the energy from photons hitting photsystem II?
When photons hit photosystem II in the thylakoid membrane of chloroplasts, they excite electrons that are used to split water molecules into oxygen, protons, and electrons. The oxygen is released as a byproduct, while the electrons are used to generate ATP and NADPH through the process of photosynthesis.
What two particles are needed to activate pv cells?
Photovoltaic (PV) cells primarily rely on photons and electrons for activation. Photons, which are particles of light, strike the solar cell and excite electrons in the semiconductor material, typically silicon. This excitation allows the electrons to move freely, creating an electric current when collected by the cell's conductive layers. Thus, the interaction between photons and electrons is essential for the operation of PV cells.
How can you can increase or decrease the energy possessed by electrons?
To increase the energy possessed by electrons, you can provide them with external energy sources such as heat or light. This can excite the electrons to higher energy levels. To decrease their energy, you can remove external energy sources, causing the electrons to lose energy and move to lower energy levels.
Why is the ionosphere more highly ionized during the day light hours than it is at night?
One reason I can think of is that photons from the sun will excite the electrons to a high enough state that they leave the atoms, therefore you have ionized atoms and electrons. When it's night and there are no photons, many of the electrons would attract back to the positively charged ions to form uncharged atoms.
What energy transformations is in a PV cell?
In a photovoltaic (PV) cell, the energy transformation involves converting light energy (photons) into electrical energy (electrons). When photons from sunlight strike the PV cell, they excite electrons in the semiconductor material, allowing them to flow as an electric current, thus converting light energy into electrical energy.
How do photons interact within chloroplasts?
Photons are absorbed by pigments within chloroplasts, such as chlorophyll, which then excite electrons to a higher energy state. These energized electrons are then used in photosynthesis to convert light energy into chemical energy, leading to the production of ATP and NADPH. Ultimately, this energy is utilized to drive the synthesis of carbohydrates in plants.
Why glow appears in discharge tube?
Glow appears in a discharge tube due to electrons colliding with gas atoms, exciting them to higher energy levels. When the excited atoms return to their ground state, they release photons of light, creating the glow.
What does the light reaction require that the dark reaction does not?
the light reaction requires energy from the sun in the form of photons. these photons excite the electrons in photosystem II and results in the electrons passing through a series of redox reactions (creating a proton gradient that through chemiosmosis turns ADP into ATP) and replaces the missing electrons of photosystem I. then when photons hit photosystem II the electrons are re-energized and go through the reaction to reach NADP+ and though NADP+ reductase are accepted by the newly formed NADPH. so in short the products of the light reaction is what is required by the dark reaction (as well as 3 CO2)
What causes the electrons to move in a solar panel and how?
Electrons move in a solar panel because of something called the photoelectric effect. Light, such as from the sun is made up of photons. When a photon strikes a metal, it knocks lose electrons. This effect can vary based on the type of metal. Solar panels are designed to allow electrons to be easily effected.
