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Engelmann's experiment determined which wavelengths of light are most effective at causing photosynthesis In other words Engelmann measured?
Engelmann's experiment measured the rate of oxygen production by algae exposed to different wavelengths of light to determine which wavelengths are most effective at driving photosynthesis. He found that red and blue light were the most effective, with peaks in their absorption spectra correlating with peak photosynthetic activity.
Do plants need the color of the sunlight to make food?
No. Different chlorophylls (A and B) and accessory pigments (e.g. carotenes, phycobiliproteins) have different absorption spectra. The combination of different spectra determine the colors that the plant uses to perform photosynthesis. A regular green plant will use mostly red and blue-violet light to drive photosynthesis. Green light is mostly reflected and not used.
How do plants with foliage that is not green in color photosynthesize?
Plants with foliage that is not green in color can still photosynthesize because they contain pigments other than chlorophyll, such as anthocyanins or carotenoids, which can also capture sunlight and convert it into energy. These pigments may have different absorption spectra than chlorophyll but can still be used in the photosynthesis process.
What amino acid residues are detected when the spectrophotometric assay is used to quantify proteins?
In the spectrophotometric assay for protein quantification, the method typically detects tyrosine, tryptophan, and cysteine residues due to their absorption at specific wavelengths. These amino acids have distinct absorption spectra that enable the measurement of protein concentration based on the amount of light absorbed.
What evidence indicates that electrons move around the nucleus in definite pathways?
the evidence is that when you look through microscopes you can see the different atoms and see the parts of them
Engelmann's experiment determined which wavelengths of light are most effective at causing photosynthesis In other words Engelmann measured?
Engelmann's experiment measured the rate of oxygen production by algae exposed to different wavelengths of light to determine which wavelengths are most effective at driving photosynthesis. He found that red and blue light were the most effective, with peaks in their absorption spectra correlating with peak photosynthetic activity.
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.
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.
How absorption spectra can be used in the identification of unknowns?
Each substance has known specific maximum of absorption. Comparing spectra substances can be identified.
How Many types of Infrared Spectra?
There are three main types of infrared spectra: absorption spectra, emission spectra, and reflection spectra. Absorption spectra are produced when a material absorbs infrared energy, emission spectra are produced when a material emits infrared radiation, and reflection spectra result from the reflection of infrared radiation off a material.
What is extinction spectra?
The extinction spectra is actually the measurement of light absorption in different mediums. This spectra is used in chemistry and biochemistry.
What has the author George Conrad Tabisz written?
George Conrad Tabisz has written: 'Collision-induced effects in the visible and near infrared electronic absorption spectra of oxygen' -- subject(s): Physics Theses, Collisions (Physics), Spectra, Absorption spectra, Oxygen 'Intensity measurements and interpretation of the visible absorption spectrum of liquid oxygen' -- subject(s): Physics Theses, Absorption spectra, Liquid oxygen
What microscope can plot an absorption spectrum of the item under examination?
A spectrophotometer is an instrument commonly used to measure absorption spectra of samples. Microscopes do not typically have the capability to measure absorption spectra like a spectrophotometer can.
How can forensic scientists use emission line spectra and absorption spectra?
Forensic scientists can use emission line spectra and absorption spectra to analyze trace evidence, such as glass fragments or paint chips, found at a crime scene. By comparing the spectra of the collected samples with reference spectra, scientists can identify the chemical composition of the evidence and link it to potential sources or suspects.
What has the author Michael Edward O'Byrne written?
Michael Edward O'Byrne has written: 'Combination frequencies and infra-red absorption spectra of certain alkaloids' -- subject(s): Absorption spectra, Alkaloids, Infrared spectra, Spectrum analysis, Tables
Why do stellar spectra have absorption lines?
Need a different, better answer.
What are the similarities between emission and absorption spectra?
The lines are at the same frequencies
