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Why do pigments separate during the development of a chromatogram?
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3 Why do the pigments become separated during the development of the chromatogram?
The chromatogram, or chromatography paper has solvent on it. Each pigment will separate itself from the others due to the relative solubility of that particular pigment.
Why the beaker covered during the development of chromatogram?
During the development of a chromatogram, it is better to cover it with a beaker to prevent evaporation, which will affect the movement of the solute and solvent system. This will ensure that the chromatogram will develop properly.
What would happen if the beaker is left uncovered during the development of the chromatogram?
Bad things happen. The mobile phase evaporates and thus it's composition changes. The vapor phase above the chromatogram is not saturated or at equilibrium, and this affects the movement of the sample on the solid phase.
Why do the pigments separate during column chromatography?
Because the retention coefficients of different substances are also different.
What do pigments absorb during photosynthesis?
light energy
Describe why you see fall colors during the fall season What happens to the green pigments that allows for the orange red and yellow pigments to be more visible?
Because the amount of sunlight is less and the weather is colder, trees allows the beta carotene (orange pigments), and other pigments, to be more visible compared to when the leaves have more chlorophyll (green pigments).
What substance that absorbs light?
Chlorophyll pigments absorb light during photosynthesis.
What does a thylakoid do during photosynthesis?
Energy is transferred to electrons in cholophyll and other pigments in the choloroplasts
Do carotene's help in the capture of sunlight during photosynthesis?
Yes they do, carotenes have a different wavelength peak of light absorption than chlorophyll pigments. They are classified as secondary pigments.
What explains why carotene pigments are not seen during the summer months?
They are covered by the chlorophyll color
What are the pigments formed during the Maillard reaction are called?
You think probable to components of caramel.
Chlorophyll and other pigment are used in photosynthesis to capture?
Chlorophyll and other plant pigments are present during photosynthesis. These pigments make absorption of sunlight capable.
