Biology 1
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Experimen
ChemiCal Basis of
Chemical Basis of Life – Part I Carbohydrates
H a n d s - o n l a b s , i n c . Ve r s i o n 42-0144-00-01
LAB REPORT
PHOTOS – Include two digital photos with your lab report, either as separate attachments to an e-mail or paste into your document. 1. Photo #1 – Take a photo of your finished experiment in exercise 2, testing for sugars.
(The 3 test tubes after heating, but while still in the pan.) Be sure to take a view that shows the colors in all the tubes
^Picture is A, B, X in that order^
!
www.LabPaq.co
!1
©Hands-On Labs,
Experimen
ChemiCal Basis of
!
2. Photo #2 – Take a photo of the tubes after you have added the iodine solution. (Again, be sure that you are close enough to see the results clearly.)
!
www.LabPaq.co
!2
©Hands-On Labs,
Experimen
ChemiCal Basis of
3. Photo #3 – Take a photo of the tubes after testing your cereal – Benedict’s and IKI tests.
^^ The left picture is A-C and right picture is D-F backwards^^
! ! ! !
Exercise 2: Simple Sugars
Observations:
!
Data T able 2: Benedict’s reagent test for sugar
Test Tubes A B Was clear light blue X
faint yellow
! ! ! !
Initial clear Color After orange Color 5
violet
Questions:
A. What was the initial color of the Benedict’s reagent? How did this compare to the color after heating? The initial color of the benedict reagent in most of the solutions were relatively clear, and bendict reagent itself was blue. After heating there were a range of colors depending on the solution, but the colors were drastically different;
www.LabPaq.co
!3
©Hands-On Labs,
Experimen
ChemiCal Basis of
! ! !
very vivid. B. Is glucose present in the unknown solution? Explain your answer .
!
No, because after heating the unknown solution developed a purple color which is not one of the indicators. C. What are some medical conditions in which it is necessary to monitor glucose levels?
Some...
ChemiCal Basis of
Chemical Basis of Life – Part I Carbohydrates
H a n d s - o n l a b s , i n c . Ve r s i o n 42-0144-00-01
LAB REPORT
PHOTOS – Include two digital photos with your lab report, either as separate attachments to an e-mail or paste into your document. 1. Photo #1 – Take a photo of your finished experiment in exercise 2, testing for sugars.
(The 3 test tubes after heating, but while still in the pan.) Be sure to take a view that shows the colors in all the tubes
^Picture is A, B, X in that order^
!
www.LabPaq.co
!1
©Hands-On Labs,
Experimen
ChemiCal Basis of
!
2. Photo #2 – Take a photo of the tubes after you have added the iodine solution. (Again, be sure that you are close enough to see the results clearly.)
!
www.LabPaq.co
!2
©Hands-On Labs,
Experimen
ChemiCal Basis of
3. Photo #3 – Take a photo of the tubes after testing your cereal – Benedict’s and IKI tests.
^^ The left picture is A-C and right picture is D-F backwards^^
! ! ! !
Exercise 2: Simple Sugars
Observations:
!
Data T able 2: Benedict’s reagent test for sugar
Test Tubes A B Was clear light blue X
faint yellow
! ! ! !
Initial clear Color After orange Color 5
violet
Questions:
A. What was the initial color of the Benedict’s reagent? How did this compare to the color after heating? The initial color of the benedict reagent in most of the solutions were relatively clear, and bendict reagent itself was blue. After heating there were a range of colors depending on the solution, but the colors were drastically different;
www.LabPaq.co
!3
©Hands-On Labs,
Experimen
ChemiCal Basis of
! ! !
very vivid. B. Is glucose present in the unknown solution? Explain your answer .
!
No, because after heating the unknown solution developed a purple color which is not one of the indicators. C. What are some medical conditions in which it is necessary to monitor glucose levels?
Some...