Dilution Experiment Test tube Starch concentration (/mL) Dilution factor Observation 1 500 1:10 Dark blue 2 50 1:100 Light blue 3 5 1:1000 Light purple 4 0.5 1:10000 Yellow 5 0.05 1:100000 Light yellow Observation: 1 has the highest concentration of starch and the following sample which are test tube 2, 3, 4 and 5 have lighter in colour which are light blue, purple, yellow and light yellow in colour respectively. Question: Discuss about the dilution experiment. Explain about the change in colour, the structure of the starch. Explain about iodine also. Calculation below (starch concentration).
Dilution Experiment Test tube Starch concentration (/mL) Dilution factor Observation 1 500 1:10 Dark blue 2 50 1:100 Light blue 3 5 1:1000 Light purple 4 0.5 1:10000 Yellow 5 0.05 1:100000 Light yellow Observation: 1 has the highest concentration of starch and the following sample which are test tube 2, 3, 4 and 5 have lighter in colour which are light blue, purple, yellow and light yellow in colour respectively. Question: Discuss about the dilution experiment. Explain about the change in colour, the structure of the starch. Explain about iodine also. Calculation below (starch concentration).
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question
Dilution Experiment
Test tube |
Starch concentration (/mL) |
Dilution factor |
Observation |
1 |
500 |
1:10 |
Dark blue |
2 |
50 |
1:100 |
Light blue |
3 |
5 |
1:1000 |
Light purple |
4 |
0.5 |
1:10000 |
Yellow |
5 |
0.05 |
1:100000 |
Light yellow |
Observation: 1 has the highest concentration of starch and the following sample which are test tube 2, 3, 4 and 5 have lighter in colour which are light blue, purple, yellow and light yellow in colour respectively.
Question: Discuss about the dilution experiment. Explain about the change in colour, the structure of the starch. Explain about iodine also. Calculation below (starch concentration).
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