0
Presence of blue or black color indicates the presence of what carbohydrate?
Wiki User
∙ 15y ago
If I am remembering my science classes correctly blue or black coloring indicated the presence of starch.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What indicates the presence of starch in the food samples?
blue-black color indicates the presence of starch
Presence of black hole can be notify by the emission of ------- rays?
X-rays, mainly.
How can you tell by using iodine if a sugar is a monosaccharide disaccharide or polysaccharide?
Adding iodine to the solution will turn it a deep blue which indicate presence of polysaccharides.
Why does the uncovered part of a life turn blue black after putting iodine solution?
It shows the presence of Starch in the section ot the leave. during photosynthesis when Starch is being produce with the presence of sunlight. it is then tested and found that the exposable part of the leave is containing of Starch.
What is used to test for presence of polysaccharide?
Most likely the sucrose test. what biologist use is the iodine test. Iodine is used to test for the presence of starch( a polysaccharide) any material containing starch always turn blue-black when iodine is added.
What indicates the presence of starch in the food samples?
blue-black color indicates the presence of starch
What is iodine in the presence of when it turns black?
Starch, alpha-carbohydrate
What color does the presence of starch indicates?
In Iodine Test the color that will confirm the presence of starch is black,dark brown or very dark purple
What type of carbohydrate does iodine identify?
Iodine test shows the presence of starch. If it goes blue/black, starch is present. If it stays brown then there is no starch.
When iodine solution is mixed with an unknown sample of food the mixture turn blue black this color change indicates the presence of?
An enzyme.
What are the uses of nylander's test?
Nylander's test is used to detect the presence of reducing sugars such as glucose in a sample, particularly in cases of suspected infantile diarrhea. The appearance of a blue-black color indicates a positive result, suggesting the presence of reducing sugars.
When does red litmus paper turn black?
Litmus paper indicates the pH of a solution. Red litmus paper will turn blue in the presence of bases (alkaline solutions). A black color indicates that a chemical reaction is taking place with the litmus dye or paper, and this does not provide any information on pH. The paper may also turn white in the presence of strong bleaching agents such as chlorine or peroxides.
Is black the presence of color?
No, the colour black is actually the absence of color.
Is black the presence of all color?
No, black absorbs all of the seven primary colors. White reflects it all, making the color white the presence of all colors.
What color does iodine turn in the presence of startch?
blue/black
What is the food test for starch?
It is simply called the Starch test which is the process of testing something for the presence of starch. Add Iodine solution to whatever is it you're testing and a dark blue/black color indicates the presence of starch
Is black the presense of all color?
No. White is the presence of all colors, black is the absence.
