0
cellulose is derived from D-glucose units, which condensed through beta(1->4)-glycosidic bond. This give cellulose to be a straight polymer therefore, it can't coil around iodine to produce blue color as starch does.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Do proteins give positive iodine tests?
Yes it give positive result
What is principle of iodine test?
the iodine will react with carbohydrate to give different color .
What is the balanced equation for aluminium reacting with iodine to give solid aluminium iodine?
2Al + 3I2 -> 2AlI3
Which halogens give a positive beilstein test?
which halogens give a positive beilstein test?
How is iodine estimated in ccl4 and h2o layer?
Titrate each solution separately with solution of known concentration of sodium thiosulphate. The titre value will give the amount of thiosulphate reacted with iodine, hence you can find concentration of iodine.
Do proteins give positive iodine tests?
Yes it give positive result
Why glycogen gives red colour with iodine?
When Iodine is added to amylose, the helical shape of the unbranched polysaccharide traps Iodine molecules, producing a deep blue-black complex. Amylopectin, cellulose, and Glycogen react with iodine to give red to brown colors. Glycogen produces a reddish-purple color.
Contrast the structure and function of starch with those of cellulose in plant cells?
Starch and Cellulose are both built on the same building block, Glucose, but are arranged differently. Because of this, they exhibit some different properties. Most importantly, the human body is capable of digesting starch, but not cellulose.
What is principle of iodine test?
the iodine will react with carbohydrate to give different color .
How starch can give a negative iodine test?
Starch can give a negative iodine test when starch is mixed with iodine in water. The iodine gets stuck in the coils of beta amylase molecules and the starch forces the iodine atoms into a linear arrangement in the central groove of the coil.
What gives cotton its strength?
Cellulose, I believe it is the hydrogen bonds with in the cellulose that give a high tensile strength
Is it tru that iodine reacts with starch to give a red color?
No when you but iodine with sarch for example a potato the starch reacrs with the iodine and it turns black
Give you a slogan for iodine?
Here are some rhyming iodine slogans: "Goiters are not fine, how about some iodine?" "If you mash your finger in a door, put some iodine on that sore." "Iodine, element 53, does plenty of good for you and me." "Iodine is fine for the injuries of mine."
What is the balanced equation for aluminium reacting with iodine to give solid aluminium iodine?
2Al + 3I2 -> 2AlI3
What type of food will give a negative Iodine test and a positive Biuret Solution test?
An iodine test is used to test for the presence of starch (or polysaccharides, specifically amylose or amylopectin). A Biuret solution test is used as an indicator for peptide bonds within proteins. Therefore, if you get a negative iodine test and a positive Biuret test, you would probably be testing a animal food source (beef, chicken, pork). Overall, any food that doesn't have starch present within it would be appropriate to use. Hope this helps!
What are three structures?
Cellulose, hemicellulose, and Pectin. These are found in plant cell wall and help give the plant structure.
How many shrimp will give you iodine poisoning?
14,000 Shrimps
