Explain from the above, why Benedict's reagent yields positive results, not only for aldoses but also for ketoses.
Homework Answers
Benedict's reagent is basically used to identify the reducing sugars. Aldoses contains an aldehyde group, so they are reducing sugars but some ketoses are also reducing sugars. In the reaction of tautomerism, equillibrium exists between the aldoses and ketoses, therefore ketoses also give positive results. Also ketoses are converted to aldoses by base in the reagent therefore gives positive results.
Add Answer to:
Explain from the above, why Benedict's reagent yields positive
results, not only for aldoses but also...
8. Discuss the results of the Benedict's test. Which compounds gave a positive result, and why?...
8. Discuss the results of the Benedict's test. Which compounds gave a positive result, and why? Which gave a negative result, and why? Use your data and the preliminary reading material to help answer this question Use your understanding of the Benedict's test and the iodoform test to answer the following 6. Two compounds have the molecular formula C3H.O.Draw their structural formulas and names using the following test results a Compound A forms a red orange precipitate with Benedict's reagent,...
Explain why fructose, an alpha-hydroxyketose, reacts with Benedict's reagent. What structural rearrangement is neccessary for this...
Explain why fructose, an alpha-hydroxyketose, reacts with Benedict's reagent. What structural rearrangement is neccessary for this reaction to occur
Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation...
Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation Test G. Todine Test Fructose Sucrose Lactose Starch Water Questions and Problems 0.6 From the results above, list the sugars that are reducing sugars and those that are not Reducing sugars Nonreducing sugars Q.7 What sugars are ketoses? Q.8 What sugars give a positive fermentation test? Q.9 Which carbohydrates give a blue-black color in the iodine test?
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives...
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives a positive Benedict's test; make sure to circle the part of the structure that is responsible for the reaction with Benedict's reagent. [5pts) Haworth Projection: (2.5 points) Hemiacetal circled / indicated (2.5 points) CARBOHYDRATES POST-LAB QUESTIONS CONT'D 24. When Benedict's reagent reacts with a reducing sugar, it oxidizes the aldehyde functional group to a carboxylic acid. As seen in the figure below: only a...
Also, include a graph please. 2) Explain why equilibrium is only reached when ΔG = 0,...
Also, include a graph please.
2) Explain why equilibrium is only reached when ΔG = 0, Your argument should NOT be centered on equations, but instead focus on concepts. A graph may prove helpful but is not required for full credit. 2) Explain why equilibrium is only reached when ΔG = 0, Your argument should NOT be centered on equations, but instead focus on concepts. A graph may prove helpful but is not required for full credit.
Explain the results in the Methylation Specific PCR (MSP) above. Be specific The positive control in...
Explain the results in the Methylation Specific PCR (MSP)
above. Be specific
The positive control in the lower panel is much stronger than
the patient samples. What control would be better (or in addition
to this control) to detect the weak expression in T3 and T4? Be
specific
Clinical Background: A 40-year-old male patient complained of a right frontal headache and right neck pain for the duration of 4 weeks. The pain was associated with intermittent blurred vision in the...
Explain at least one possible reason why you might have the following results in an agarose...
Explain at least one possible reason why you might have the following results in an agarose gel electrophoresis of your PCR products. In addition to your DNA PCR sample, you also ran a Hi-Lo Marker, a positive PCR control, and a negative PCR control. 16. Scenario C: Your Hi-Lo marker showed up but there were no bands in the lanes for your PCR positive control, DNA PCR sample or negative PCR control.
(Business Law) Explain why an appeal can only be taken from a court of record.
(Business Law) Explain why an appeal can only be taken from a court of record.
Why is subsidizing fisheries dangerous from the point of view of sustainability?Explain also by drawing. What...
Why is subsidizing fisheries dangerous from the point of view of sustainability?Explain also by drawing. What kind of fundamental changes took place in transition from the hunters and gatherers formation to the agricultural formation?
Explain why the following two commands produce different results: SELECT DISTINCT COUNT (V_CODE) FROM PRODUCT; SELECT...
Explain why the following two commands produce different results: SELECT DISTINCT COUNT (V_CODE) FROM PRODUCT; SELECT COUNT (DISTINCT V CODE) FROM PRODUCT;
8. Discuss the results of the Benedict's test. Which compounds gave a positive result, and why? Which gave a negative result, and why? Use your data and the preliminary reading material to help answer this question Use your understanding of the Benedict's test and the iodoform test to answer the following 6. Two compounds have the molecular formula C3H.O.Draw their structural formulas and names using the following test results a Compound A forms a red orange precipitate with Benedict's reagent,...
Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation Test G. Todine Test Fructose Sucrose Lactose Starch Water Questions and Problems 0.6 From the results above, list the sugars that are reducing sugars and those that are not Reducing sugars Nonreducing sugars Q.7 What sugars are ketoses? Q.8 What sugars give a positive fermentation test? Q.9 Which carbohydrates give a blue-black color in the iodine test?
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives a positive Benedict's test; make sure to circle the part of the structure that is responsible for the reaction with Benedict's reagent. [5pts) Haworth Projection: (2.5 points) Hemiacetal circled / indicated (2.5 points) CARBOHYDRATES POST-LAB QUESTIONS CONT'D 24. When Benedict's reagent reacts with a reducing sugar, it oxidizes the aldehyde functional group to a carboxylic acid. As seen in the figure below: only a...
Also, include a graph please.
2) Explain why equilibrium is only reached when ΔG = 0, Your argument should NOT be centered on equations, but instead focus on concepts. A graph may prove helpful but is not required for full credit. 2) Explain why equilibrium is only reached when ΔG = 0, Your argument should NOT be centered on equations, but instead focus on concepts. A graph may prove helpful but is not required for full credit.
Explain the results in the Methylation Specific PCR (MSP)
above. Be specific
The positive control in the lower panel is much stronger than
the patient samples. What control would be better (or in addition
to this control) to detect the weak expression in T3 and T4? Be
specific
Clinical Background: A 40-year-old male patient complained of a right frontal headache and right neck pain for the duration of 4 weeks. The pain was associated with intermittent blurred vision in the...
Explain at least one possible reason why you might have the following results in an agarose gel electrophoresis of your PCR products. In addition to your DNA PCR sample, you also ran a Hi-Lo Marker, a positive PCR control, and a negative PCR control. 16. Scenario C: Your Hi-Lo marker showed up but there were no bands in the lanes for your PCR positive control, DNA PCR sample or negative PCR control.
Explain why the following two commands produce different results: SELECT DISTINCT COUNT (V_CODE) FROM PRODUCT; SELECT COUNT (DISTINCT V CODE) FROM PRODUCT;
Most questions answered within 3 hours.
-
If the spin of the earth suddenly changed to spin in the
opposite direction, what effect...
asked 1 minute ago -
Determine the sample size required to estimate the mean score on
a standardized test within
2...
asked 19 minutes ago -
The idea that one can remain relatively 'anonymous' on the
internet if they so choose, for...
asked 6 minutes ago -
In the reaction of N2 and H2 to produce
NH3, how many moles of H2 will...
asked 7 minutes ago -
When a certain coin is flipped, the probability of
obtaining a tails is 0.55. Which of...
asked 5 minutes ago -
Can you show how a sulfonic acid group
is introduced into an aromatic ring by Friedal...
asked 10 minutes ago -
Implement the Smith-Waterman algorithm in C that accepts a
substitution matrix.
You may assume the substitution...
asked 10 minutes ago -
The equilibrium constant Kp for the reaction
C(s)+H2O(g)⇌CO(g)+H2(g) is 2.44 at 1000 K. What are the...
asked 22 minutes ago -
HACKING
1: Discuss the tricks of hacking in 300 words.
2: Explain in you own words...
asked 23 minutes ago -
Answer the following questions about the NOCl molecule. There
are [?] single bonds in this molecule....
asked 21 minutes ago -
The range of frequencies included in an RF pulse is referred to
as it's bandwidth (BW)....
asked 24 minutes ago -
In the context of the 55 principles, _________
means to keep a process going through training,...
asked 35 minutes ago