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What is the basis of the test for cellulose with Shultz stain?
Proteins get denatured when acid is added and this forms a white coagulum which is slightly yellow in colour because of nitro- derivatives of proteins given by aromatic amino acids.Read more: What_is_the_basis_of_Heller's_test_in_biochemistryget denatured when acid is added and this forms a white coagulum which is slightly yellow in colour because of nitro- derivatives of proteins given by aromatic amino acids.
Which cells in a leaf can photosynthesise?
Any cell that contains chloroplast can do photosynthesis. That's why stem of Cucurbita maxima, Basella rubra etc. and root of Trapa bispinosa,Tinospora cordifolia etc. take part in photosynthesis.
What substance is yellow-brown in colour?
Iodine
What does stand l for on the periodic table?
I stands for iodine. It is placed in group-17.
Why does the Schultze' solution turns purple when tested with cellulose?
Schultze's solution turns purple when tested with cellulose due to the presence of iodine in the solution, which forms a complex with the hydroxyl groups in cellulose. This interaction results in a characteristic color change, as the iodine molecules fit into the helical structure of the cellulose, producing a deep purple color. This reaction is commonly used as a qualitative test to confirm the presence of cellulose in various substances.
Does iodine react with cellulose?
Iodine can react with cellulose through a process called iodination. When cellulose is treated with iodine, the iodine molecules can attach to the hydroxyl groups on the cellulose chains. This reaction can be used in chemistry to modify cellulose and produce different types of cellulose derivatives.
Why cellulose can not hold iodine?
Cellulose does not hold iodine well because it lacks the proper functional groups to form stable complexes with iodine. Iodine typically forms complexes with starch molecules, but cellulose's structure does not allow for effective binding of iodine.
Why cellulose gives no colour with iodine?
Cellulose is a complex carbohydrate made up of glucose units linked together in long chains. It does not contain the appropriate functional groups that can interact with iodine to give a color reaction. Iodine typically reacts with starch, which has a different chemical structure with suitable groups for forming a colored complex.
What is the basis of the test for cellulose with Shultz stain?
Proteins get denatured when acid is added and this forms a white coagulum which is slightly yellow in colour because of nitro- derivatives of proteins given by aromatic amino acids.Read more: What_is_the_basis_of_Heller's_test_in_biochemistryget denatured when acid is added and this forms a white coagulum which is slightly yellow in colour because of nitro- derivatives of proteins given by aromatic amino acids.
What is yellow brown colour?
Iodine
What colour is the iodine in the bottle?
The color of iodine in the bottle is typically purple or brown.
Why doesn't the cellulose give blue color with iodine?
Cellulose does not give a blue color with iodine because it is a polysaccharide composed of glucose units linked together by beta-1,4-glycosidic bonds. Iodine reacts with the helical structure of starch, forming a blue-black complex due to the presence of amylose chains. Cellulose lacks the necessary structure for this reaction to occur.
Which cells in a leaf can photosynthesise?
Any cell that contains chloroplast can do photosynthesis. That's why stem of Cucurbita maxima, Basella rubra etc. and root of Trapa bispinosa,Tinospora cordifolia etc. take part in photosynthesis.
What is the initial colour of an iodine solution?
The initial color of an iodine solution is yellow-brown.
What substance is yellow-brown in colour?
Iodine
What does stand l for on the periodic table?
I stands for iodine. It is placed in group-17.
Why doesn't cellulose give a positive iodine test?
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.
