Answered

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QUESTION 7 Consider the results you saw for the pigment paper chromatography experiment in the final part of the lab. Spinach was the source of pigments, and spinach leaves are normally a dark green color. However, when we ran the pigments on the chromatography paper, we discovered that light yellow and orange-yellow bands appeared. Why couldn't we see these colors on the spinch leaves themselves

Sagot :

batolisis

Answer:

Hello the options to your question is missing below are the missing options

  1. the collected spinach leaves must have been contaminated by some kind of yellow leaves
  2. the nonpolar solvent must have altered the color of these pigments as it passed through them
  3. the yellow pigments are partial breakdown products as the chlorophyll degrades
  4. the chlorophyll a is present in much higher concentrations, so dominates the leaf's appearance

answer : the chlorophyll a is present in much higher concentrations, so dominates the leaf's appearance  ( 4 )

Explanation:

We couldn't see these colors on the spinach leaves because the chlorophyll a is present in much bigger concentrations so it dominates the leaf's appearance

This is because The light yellow and orange yellow pigments on the spinach are the carotenoid pigments. (fat soluble pigments) and they absorb light and they change colors. but since the chlorophyll is present in high concentrations there colors won't be visible

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