Essays Tagged: "Benedict's reagent"

Llab report on testing for macromolecules.

tion·40 mL sucrose solution·40 mL starch solution·40 mL distilled water·Benedict's solution in a dropper bottle·Iodine solution in a dropper bottle·Sudan IV s ... 6.5.The test tube with the same number was added with 10 mL of each sample.6.After that 5 drops of Benedict's solution was added to each test tube.7.All the test tubes were heated in the hot water ba ...

(3 pages) 70 0 3.2 Apr/2003

Subjects: Science Essays > Biology

Testing for Macromolecules

5-10 minutes4.Record observationsResults:Table 1: Reactions of sample substances to indicatorsSAMPLEBenedict's solution + heatIodine solutionFilter paperBiuret reagent1.protein solutionPurpleNo change ... estigation 1A: Testing for MacromoleculesDiscussion:By observing the table above, we could see that Benedict's test was for reducing sugars, iodine test was for the presence of starch, filter paper wa ...

(2 pages) 53 0 4.0 Feb/2004

Subjects: Science Essays > Biology

Lab write up on finding organic compounds in common everyday foods

both tested positive for sugars. Sugars are also carbohydrates, when the sugars were exposed to the benedict's solution it went from blue to orange. Egg white and gelatin tested positive for proteins. ...

(3 pages) 38 0 5.0 Oct/2004

Subjects: Science Essays

Tests for various biological molecules and their properties

n fit into the test-tubeStep 2: put the small piece of bread into a test-tubeStep 3: add 4 drops of benedict's solution into the test-tubeStep 4: mix the things in the test-tube wellStep 5: put the te ... it into the test-tubeStep 2: put the small piece of meat into the a test-tubeStep 3: add 4 drops of benedict's solution into the test-tubeStep 4: mix the things in the test-tube wellStep 5: put the te ...

(3 pages) 14 0 0.0 Sep/2006

Subjects: Science Essays > Biology

Unknown Chemical Lab

cal were a polysaccharide it would then turn into a dark purpleor black color. Another test was the Benedict's test which tests formonosaccharide, which should turn the chemical into a tangerine, redd ... and the lipid positive to the appropiatate places.Raise the brown paper into the light and observe.Benedict's Test Fill an empty test tube with altleast 2ml of your uknown chemical.Drop the beneicts ...

(3 pages) 13 0 0.0 Nov/2001

Subjects: Science Essays > Chemistry

Problem How is the presence of carbohydrates, proteins and fats

by using iodine, this caused the potato to get blue-black. Sugar was detected in the honey by using Benedict's solution that caused it to get a dark-blue color, this means honey has sugar. Proteins ar ... s iodine solution slice of raw potato hot-water bath graduated cylinder honey solution 2 test tubes Benedict's Solution ..Sugar: The term sugar includes both monosaccharides (6 carbon or simple sugars ...

(2 pages) 1688 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

1.Find THE AMOUNT OF REDUCING SUGARS AND STARCH IN YELLOE AND GREEN BANANAS by Using the Benedict's test nad Iodine test. Why the Benedict's solution should be used in excess.

ow banana tasted sweet since it contained large amount of reducing sugars. Biological principles: Benedict's test for reducing sugar: Reducing sugars include all monosaccharides (glucose) and some ... ing sugar: Reducing sugars include all monosaccharides (glucose) and some disaccharides (maltose). Benedict's solution contains copper sulphates. Reducing sugars reduce copper(2) ions present in the ...

(4 pages) 13530 0 0.0 Feb/2009

Subjects: Science Essays > Biology

Classification of Macromolecules

ohydrates, proteins, or vitamin C. The tests used were the Biuret test, the xanthoproteic test, the Benedict's test, the starch test, and the indophenol test. Many of the substances were positive for ... hydrates, a Biuret test and a starch test were conducted on each substance. To test for proteins, a Benedict's test and a Xanthoproteic test were conducted on each substance. Finally, to test for vita ...

(9 pages) 6867 0 3.0 Apr/2009

Subjects: Science Essays > Biology

Testing for Macromolecules

ample's reaction with iodine was recorded.4. The samples connected by another group with 5 drops of Benedict's solution added were heated all together in hot water bath.5. The test tubes containing sa ... bag test is the method to indicate the lipids. The glucose solution reacted most dramatically with Benedict's solution after it got heat up in hot water bath. Other samples all turned blue and stayed ...

(5 pages) 19402 0 0.0 Oct/2009

Subjects: Science Essays > Biology

The Use Of Positive And Negative Controls To Determine The Macromolecules Present In An Unknown Solution

tive outcome results in no colour change and all solutions remain a very pale yellow (Pavia, 2005). Benedict's solution was used to identify the presence of reducing sugars; the aldehyde functional gr ... lutions when treated with iodine solution to determine the presence of starch and glycogen.Table 2: Benedict's test for identifying reducing sugars SolutionPositive (+)/Negative(--)Qualitative O ...

(5 pages) 1 0 0.0 Oct/2011

Subjects: Science Essays > Biology