Q:

What gives plants their green color?

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Quick Answer

A pigment called chlorophyll gives plants their green color. Chlorophyll is an indispensable molecule in photosynthesis, the process by which plants convert sunlight into chemical energy. Chlorophyll is green because the molecules absorb the blues and reds in the spectrum of light and reflect the greens and yellows.

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Full Answer

The color of any substance depends on the energy levels of the atoms and molecules that comprise it, as well as the spectrum of the incoming light. If an object is blue, it is because it reflects blue light and absorbs the rest, which raises the electrons in its atoms to a higher energy level in a process called excitation.

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Related Questions

  • Q:

    How does chlorophyll make a leaf look green?

    A:

    Chlorophyll, a type of pigment, makes leaves look green because it reflects light that falls in the green part of the visible light spectrum while absorbing other wavelengths of light. Chlorophyll molecules are classified as “photoreceptors,” meaning that they capture light energy and transfer it to molecules that transform it into chemical energy. There are three main types of chlorophyll that work together to collect as much energy as possible.

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  • Q:

    What is the yellow pigment in leaves called?

    A:

    Carotenoid is an organic pigment that is found in leaves. Depending on the concentration of this pigment, leaves can be red, orange or yellow.

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  • Q:

    What is the role of chlorophyll in photosynthesis?

    A:

    Chlorophyll is a pigment found in the chloroplasts of plants that absorbs the wavelengths of light required to convert water and carbon dioxide into chemical energy during photosynthesis. Molecules of chlorophyll are arranged around the photosystems embedded in the chloroplasts' thylakoid membranes. There can be several hundred chlorophyll molecules per photosystem.

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  • Q:

    What is the relationship between pigments and chlorophyll?

    A:

    Chlorophyll is a pigment, or a material that absorbs certain wavelengths of light. Plants use chlorophyll's ability to absorb light in photosynthesis, notes Scienceline.

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