Some students tested two samples of a mixture of starch and water with two different indicators. The results of these tests are shown in Table 1 below. Table 1: Results of Testing a Starch-Water Solution with Indicators. Color of Sample Being Tested Color of Sample After Indicator Was Added Indicator Used Indicator Alone starch indicator amber starch and water black glucose indicator + heat blue starch and water blue Next, a specific protein was added to two new samples of the starch and water mixture. After waiting 30 minutes, the students tested these samples with the same two indicator solutions. The results are shown in Table 2 below. Table 2: Results of Testing a Starch-Water Solution with Indicators 30 Minutes After Adding a Certain Protein Color of Indicator Alone Sample Being Tested Color of Sample After Indicator Was Added Indicator Used starch indicator amber starch and water amber glucose indicator + heat blue starch and water brick red I Based on these results, it can be concluded that the specific protein that was added to the samples was (1) a salt solution (2) a new indicator (3) a pancreatic hormone (4) a biological catalyst

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
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Some students tested two samples of a mixture of starch and water with two different
indicators. The results of these tests are shown in Table 1 below.
Table 1: Results of Testing a Starch-Water Solution with Indicators.
Color of
Indicator Alone
Sample
Being Tested
Color of Sample After
Indicator Was Added
Indicator Used
starch indicator
amber
starch and water
black
glucose
indicator + heat
blue
starch and water
blue
Next, a specific protein was added to two new samples of the starch and water mixture.
After waiting 30' minutes, the students tested these samples with the same two indicator
solutions. The results are shown in Table 2 below.
Table 2: Results of Testing a Starch-Water Solution with
Indicators 30 Minutes After Adding a Certain Protein
Color of
Indicator Alone
Sample
Being Tested
Color of Sample After
Indicator Was Added
Indicator Used
starch indicator
amber
starch and water
amber
glucose
indicator + heat
blue
starch and water
brick red
I Based on these results, it can be concluded that the specific protein that was added to the samples was
(1) a salt solution
(2) a new indicator
(3) a pancreatic hormone
(4) a biological catalyst
Transcribed Image Text:Some students tested two samples of a mixture of starch and water with two different indicators. The results of these tests are shown in Table 1 below. Table 1: Results of Testing a Starch-Water Solution with Indicators. Color of Indicator Alone Sample Being Tested Color of Sample After Indicator Was Added Indicator Used starch indicator amber starch and water black glucose indicator + heat blue starch and water blue Next, a specific protein was added to two new samples of the starch and water mixture. After waiting 30' minutes, the students tested these samples with the same two indicator solutions. The results are shown in Table 2 below. Table 2: Results of Testing a Starch-Water Solution with Indicators 30 Minutes After Adding a Certain Protein Color of Indicator Alone Sample Being Tested Color of Sample After Indicator Was Added Indicator Used starch indicator amber starch and water amber glucose indicator + heat blue starch and water brick red I Based on these results, it can be concluded that the specific protein that was added to the samples was (1) a salt solution (2) a new indicator (3) a pancreatic hormone (4) a biological catalyst
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