PLEASE HELP ME WITH THE REDUCING SUGAR and the question at the end!!!! Hydrolysis of Macromolecules...
PLEASE HELP ME WITH THE REDUCING SUGAR and the question at the end!!!!
Hydrolysis of Macromolecules
Experiment (dry lab)
Benedict’s Test for reducing sugars (with heat)
|
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
IF POSITIVE, name the reducing sugar |
|
A |
Starch *without* saliva |
Clear blue |
- |
|
|
B |
Starch *with* saliva |
Thick yellow |
+ |
Question
|
What happened to the macromolecule when saliva was added to the test tube? |
Homework Answers
|
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
IF POSITIVE, name the reducing sugar |
|
A |
Starch *without* saliva |
Clear blue |
- |
no reducing sugar |
|
B |
Starch *with* saliva |
Thick yellow |
+ |
maltose |
starch is macromolecule composed of glucose when we add saliva in to tube then the enzyme present in saliva called amylase hydrolyse starch and convert it into maltose (composed of 2 glucose molecule) and maltose is reducing sugar and in presence reducing sugars of Benedict’s reagent, blue solution become thick yellow.
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PLEASE HELP ME WITH THE REDUCING SUGAR and the question at the
end!!!!
Hydrolysis of Macromolecules...
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Lab question
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KamasehGbeanquoi LO5 ChemLife - Word w View Tell me what you want to do There are other types of reagents used to determine what type of biomolecule a substance is. For example, copper ions present in Benedict's reagent reacts with the free end of any reducing sugars, such as glucose, when heated. Originally blue in color, these copper ions are reduced by the sugar, and produce an orange-red colored precipitate. Alternatively, iodine-potassium iodide (KI) may also be used when working...
Question 3 A Amylase is a protein that catalyzes the conversion of starch to simple sugars. Amylase activity in an aqueous solution can be measured by using iodine as a starch indicator. A solution containing iodine and starch will have a dark blue color, whereas a solution containing iodine but no starch will have a light brown color. The color change of an iodine solution from dark blue to light brown can be used to measure the rate at which...
ne. UP Sugar Jecau repa bout cam We consisting of many glucose Lules linked together. Iodine (IKI) is added to detect the presence of starch. The iodine molecules ger stuck in the spirals of the starch molecule and cause a blue-black color to appear. A red color is an indica lack color of the star the indime sad edit rum ace Name: Lab Questions from Week 3. Fill in the following: To test for the following: Reagent/indicator Test name Section...
please help me with this experiment???
Enzymes Experiment 1: Enzymes in Food Amylase is used by humans to facilitate digestion. Specifically, it is an enzyme that breaks down starch molecules into sugar molecules. This is why people sometimes observe a sweet taste after sucking on a starch-containing food for an extended period of time. Amylase is found naturally in human saliva and the pancreas. However, it is also present in some of the common plant foods consumed by humans. This...
Can anyone help me by checking my answers? please indicate the
answer in a numerical order. thank you.
Question 1 1 pts TRUE or FALSE: When we are working with our metabolic unknown samples, we should prepare a new TSA slant each day. True False Question 2 2 pts Which of the following is NOT a possible result of a test in which your unknown bacteria were introduced into a tube of phenol red lactose broth? Fermentation of lactose producing...
Hello can you answer the incorrect question ?
X Incorrect 1) What group does the Benedict's test oxidize? A. A ketone B. More than one of these C. An ether D. An aldehyde X (Your Answer) X Incorrect 3) If you have a polysaccharide, what color is it when mixed with lodina? A. Deep brown X (Your Answer) B. Deep violet C. Light Brown D. Prussian red X Incorrect 4) What sugar was negative to the Benedict's test? A. Fructose...
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