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When a chlorophyll molecule absorbs light, the process of photosynthesis, or the transfer of light into sugar, begins. Chlorophyll is a green liquid inside one part of a plant cell: the chloroplast.

When light hits the chlorophyll molecule, it becomes excited. This energy passes through other chlorophyll molecules, and into the reaction center of Photosystem II: this is the location of the first stage of photosynthesis, and the electron transport chain.

For each photon of light that enters and excites a chlorophyll molecule, one electron is released from the reaction center of Photosystem II. When two electrons are released, they are transferred to Plastoquinone Qb, a mobile carrier, which picks up two protons and starts moving towards the Cytochrome b6f complex. Cytochrome b6f, like Photosystem II, is a complex where photosynthesis processes occur.

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Is leaves turning color in the fall a chemical or physical change?

I don't know the scientific equation, but I do know that the tree withdraws it's sugars from the leaves, during the autumn and winter to make sure that there is enough for the main tree. The withdrawal of the sugars is a physical action, but it is a chemical one as well. The chlorophyll that was made thru the sunlight on the leaves for photosynthesis. This stops when the weather turns colder and there is less sunlight causing the leaves lessen the amount to chlorophyll they can make, signaling to the tree to cut off the sugar supply to the leaves. I'd say it's both. Also, You have witnessed a spectacular chemical change if you have seen the leaves on a tree change from green to bright yellow, red, or orange. But, it is not a change from a green pigment to a red pigment, as you might think. Pigments are chemicals that give leaves their color. In autumn, however, changes in temperature and rainfall amounts cause trees to stop producing chlorophyll. The chlorophyll already in the leaves undergoes a chemical change into colorless chemicals.Where do the bright fall colors come from? The pigments that produce fall colors have been present in the leaves all along. However, in the summer, chlorophyll is present in large enough amounts to mask these pigments. In the fall, when chlorophyll production stops, the bright pigments become visible.


Why is it a chemical change when the leaves turn different colors in the fall?

As plants receive less sunlight, they change color. They are green because they have a lot of sunlight and are able to produce glucose and other energy chemicals. The less sunlight they receive, the less chemicals they produce.


Is a banana changing colors a chemical or physical change?

The change in color of a banana from green to yellow is a chemical change. This is because it involves a chemical reaction as the banana ripens, causing the chlorophyll to break down and other pigments to become more prominent.


How does a chemical change relate to the fall season?

During the fall season, the leaves of deciduous trees undergo a chemical change called chlorophyll breakdown. As the days grow shorter and cooler, chlorophyll production slows down, revealing the pigments that were masked by green chlorophyll. This process leads to the vibrant red, orange, and yellow colors seen in fall foliage.


Is the change in mass significant when an object gains or loses electrons?

No, the change in mass is generally not significant when an object gains or loses electrons because electrons have a very small mass compared to protons and neutrons in the nucleus. The change in mass from gaining or losing electrons is usually negligible.

Related Questions

When sunlight excites electrons in chlorophyll how do electrons change?

As red and blue light energy is absorbed by Chlorophyll electrons in outer shell are excited & raised to a higher energy level.


When sunlight excited electrons in chlorophyll how do the electrons change?

the electrons gain a huge amount of energy


Explain what happens when sunlight hits a chlorophyll molecule?

As the sunlight hits the chlorophyll molecules sunlight is absorbed by a molecule of chlorophyll electrons in the molecule interact with photons of light and are raised to a higher energy level. The electrons are passed from one molecule to another in an electron transport chain producing ATP and NADPH. In case you don't know ATP is what cells mainly use for energy and NADPH is use as an electron carrier.Light energy is transferred to the electrons inthe chlorophyll molecule, raising the energy of theseelectrons. These high-energy electrons make photosynthesiswork.100% correct answer. Got it from answer book :D. You might want to change some words though since I got it straight from answer book...Its 9th grade biology btw


How tree with red leaves get food?

in green plants chlorophyll traps sunlight ,by which photosynthesis takes place.but in red leaves there is a pigment act as chlorophyll or pigment which cause change in colour.


What is the green pigment in the leaves called and what does it do?

Chloroplasts


Why leaves have green color?

Leaves are green because they contain a green-coloured pigment called chlorophyll. Chlorophyll allows the leaves to capture sunlight and change it from light energy to chemical energy during photosynthesis.


Does cholorophyll havve carbon?

No chlorophyll doesn't contain carbon.rather,it absorbs or traps energy from sunlight to transform or change carbon dioxide and water to carbohydrate and oxygen.


What contains chlorophyll which is the main ingredient the plant uses to change sunlight into food for the plant?

Chlorophyl contains chloroplast , a green coloured one that absorbs the sun light.


What are the causes of color change of leaves?

sunlight, heat, viruses, season change, mutations, lack of nutrients... and many moreAnswerAs autumn gets colder the tree retrieves the nutrients from its leaves, no sense in leaving them behind. The first to get re-absorbed is the chlorophyll leaving behind the red photosynthetic pigment.


Why doesn't grass change colors in fall like leaves?

Grass does not change colors in fall like leaves because the cells in grass responsible for photosynthesis contain chlorophyll year-round. Chlorophyll gives grass its green color and continues to produce energy from sunlight, even in fall. In contrast, deciduous trees stop producing chloroph during the fall, causing their leaves to change color as the chlorophyll breaks down.


What cause leaves to change color?

chlorophyll


Why cant leaves change color in the winter?

Leaves change color in the fall due to changes in daylight and temperature, not winter. In winter, when days are shorter and temperatures drop, trees go into dormancy. This stops the production of chlorophyll, the pigment responsible for green color in leaves, causing them to turn brown and fall off.