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Biology · Studypool

Short questions

Post ID: 3264954

Assignment Content

  1. Question 1

    Question 1

    1 PointProcedure 7.1 pg. 73:How many pigments are in a plant extract? How can you isolate these pigments?
  2. Question 2

    Question 2

    4 PointsProcedure 7.1 pg. 74:7.Calculate the Rf value for each pigment:Carotene-Xanthophyll-Chlorophylla -Chlorophyllb-
  3. Question 3

    Question 3

    1 PointProcedure 7.1 pg. 74:Question 1.a What does a small Rf value tell you about the characteristics of the moving molecules?
  4. Question 4

    Question 4

    1 PointProcedure 7.1 pg. 74:Question 1.b Which are more soluble in the chromatography solvent, xanthophylls or chlorophyll a?
  5. Question 5

    Question 5

    1 PointProcedure 7.1 pg. 74:Question 1.c Would you expect the Rf value of a pigment to change if you altered the composition of the solvent? Why or why not?
  6. Question 6

    Question 6

    1 PointProcedure 7.1 pg. 74:Question 1.d If yellow xanthophylls were present in the extract, why did the extract appear green?
  7. Question 7

    Question 7

    1 PointProcedure 7.1 pg. 74:Question 1.e Is it possible to have a Rf value greater than 1? Why or why not?
  8. Question 8

    Question 8

    1 PointAttach a picture of your completed chromatogram in the Additional Content section of this lab.Yes, I attached my chromatogram pictureNo, I failed to attach my picture
  9. Question 9

    Question 9

    1 PointProcedure 7.2 pg. 75:Question 2.a What colors are diminished?
  10. Question 10

    Question 10

    1 PointProcedure 7.2 pg. 75:Question 2.b What color of lights is least effective for plant growth? Why?
  11. Question 11

    Question 11

    1 PointProcedure 7.2 pg. 75:Draw and attach an absorption spectrum for chlorophyll to the Additional Content sectionYes, I attached the absorption spectrumNo, I failed to attach my drawing
  12. Question 12

    Question 12

    1 PointProcedure 7.3 pg. 75:Question 3.a What color light does chlorophyll fluoresce?
  13. Question 13

    Question 13

    1 PointProcedure 7.3 pg. 75:Questions 3.b. Could chlorophyll fluoresce blue light? Why or why not?
  14. Question 14

    Question 14

    1 PointQuestions for Further Thought and Study pg. 76:1.Why does chlorophyll appear green to your eyes?
  15. Question 15

    Question 15

    1 PointQuestions for Further Thought and Study pg. 76:2.Durring darkness, what happens to starch formed in a leaf?
  16. Question 16

    Question 16

    1 PointQuestions for Further Thought and Study pg. 76:3.What causes leaves to turn from green to yellow and red in autumn?
  17. Question 17

    Question 17

    1 PointQuestions for Further Thought and Study pg. 76:4.Of what value to plants is starch?