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- Chlorophylls absorb light most strongly in the red and violet portions of the spectrum. Green light is poorly absorbed so when white light (which contains the entire visible spectrum) shines on leaves, green rays are transmitted and reflected giving leaves their green color. The similarity of the action spectrum of photosynthesis and the absorption spectrum of chlorophyll tells us that chlorophylls are the most important pigments in the process.
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The graph represents the absorption spectrum of chlorophyll The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum?
The graph suggests that chlorophyll absorbs light most efficiently in the blue and red regions of the spectrum. This is because chlorophyll molecules absorb light most strongly in these regions, which corresponds to the wavelengths most useful for photosynthesis.
Is an absorption spectrum also called a bright line spectrum?
No, an absorption spectrum and a bright line spectrum are not the same. An absorption spectrum is produced when light is absorbed by atoms or molecules, showing dark lines at specific wavelengths. On the other hand, a bright line spectrum is produced when atoms or molecules emit light at specific wavelengths, creating bright lines in the spectrum.
What is the spectrum of Betelgeuse?
The spectrum of Betelgeuse, a red supergiant star in the constellation Orion, is characterized by strong absorption lines indicative of its cooler temperature, which is around 3,500 Kelvin. Its spectrum shows prominent features of elements such as hydrogen, calcium, and titanium, along with molecular bands from titanium oxide (TiO) that contribute to its reddish color. Additionally, Betelgeuse's spectrum reveals signs of variability, likely due to pulsations and mass loss, which can affect the absorption features over time. Overall, the spectrum reflects its classification as a M-type star with distinct characteristics typical of late-type stars.
How do the spectra of the sun and the green leaf compare?
The spectra of the sun and a green leaf are different. The sun's spectrum contains a wide range of colors, while a green leaf's spectrum is more focused on green wavelengths due to chlorophyll absorption.
What part of the star is responsible for the dark lines in its spectrum?
The dark lines in a star's spectrum are caused by absorption of specific wavelengths of light by the elements in the star's outer atmosphere. This absorption occurs when the elements in the atmosphere absorb photons of specific energies, leading to the creation of dark absorption lines in the spectrum.
Why doesn't the action spectrum for photosynthesis exactly match the absorption spectrum of chlorophyll a?
The action spectrum for photosynthesis doesn't exactly match the absorption spectrum of chlorophyll a because other pigments, like chlorophyll b and carotenoids, also play a role in capturing light energy for photosynthesis. These additional pigments have absorption peaks at different wavelengths, contributing to the overall light absorption by the plant. As a result, the combined absorption spectra of all pigments involved in photosynthesis do not perfectly align with the action spectrum.
Figure 10.1 shows the absorption spectrum for chlorophyll a and the action spectrum for photosynthesis Why are they different?
The absorption spectrum shows which wave lengths are absorbed in each individual type of chlorophyll. The action spectrum shows which wavelengths of light are most effective for photosynthesis.
What is the relation between the electromagnetic spectrum of solar radiation and the absorption spectrum of chlorophyll?
Solar radiation peaks in energy in the mid-yellow range. Chlorphyll's absorption also peaks in this range. It is a demonstration of the adaption of plants to optimizing their production efficiency.
How many absorption peaks does chlorophyll a have?
Chlorophyll a has two absorption peaks in the visible spectrum, at around 430 nm and 660 nm. These peaks correspond to the blue and red regions of the light spectrum, which are most important for photosynthesis.
Does chlorophyll help with the absorption of iron in the body?
No, chlorophyll does not help with the absorption of iron in the body.
The graph represents the absorption spectrum of chlorophyll The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum?
The graph suggests that chlorophyll absorbs light most efficiently in the blue and red regions of the spectrum. This is because chlorophyll molecules absorb light most strongly in these regions, which corresponds to the wavelengths most useful for photosynthesis.
What does the absorption spectrum of an atom show?
The absorption spectrum of an atom shows that the atom emits that spectrum which it absorbs.
What Is The Absorption Spectrum Of boron?
The absorption spectrum of boron typically shows strong absorption in the ultraviolet region, with some absorption in the visible spectrum as well. Boron's absorption spectrum is characterized by a series of sharp peaks due to transitions between energy levels in its atomic structure.
What meant by an absorption spectrum?
In the absorption spectrum the peaks are due to preferential absorption at a definite wavelength by molecules, ions, etc.
Is an absorption spectrum also called a bright line spectrum?
No, an absorption spectrum and a bright line spectrum are not the same. An absorption spectrum is produced when light is absorbed by atoms or molecules, showing dark lines at specific wavelengths. On the other hand, a bright line spectrum is produced when atoms or molecules emit light at specific wavelengths, creating bright lines in the spectrum.
What is a molecule that absorbs some wavedlengths of light but not others?
Chlorophyll is an example of a molecule that absorbs specific wavelengths of light for photosynthesis, primarily in the red and blue regions of the spectrum but not green. This selective absorption of light is what gives chlorophyll its green color.
What is the photosynthetic pigment in plants?
There are a four main photosynthetic pigments in green plants. Chlorophyll a, chlorophyll b, carotene and xanthophyll. These all absorb different areas of the spectrum therefore allowing the plant maximum absorption of light from the sun, and hence photosynthesise effectively.
