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Why does the starch and saliva change color after 2 minutes in warm water?
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What is the meaning of failure of iodine reagent to give a color with starch after incubation with saliva?
It means starch is no longer present; it is broken down by amylase into simple sugars in the saliva.
What indicates the presence of starch in the food samples?
blue-black color indicates the presence of starch
What color change does starch indicator solution make in the absence of starch?
light orange/ yellow
How could you show that potato is a store of starch?
You could cut a piece of potato and put iodine on it. There will be a color change.
What is the colour for a plant cell's starch grains?
what is the color of the starch grain
What is the meaning of failure of iodine reagent to give a color with starch after incubation with saliva?
It means starch is no longer present; it is broken down by amylase into simple sugars in the saliva.
Conditons in which color and viscosity of saliva changes?
causes are change the color and viscosity saliva
What indicates the presence of starch in the food samples?
blue-black color indicates the presence of starch
What color change does starch indicator solution make in the absence of starch?
light orange/ yellow
Why does starch change color in iodine?
Red/White/Blue
Why does iodine change starch color?
Red/White/Blue
What colour does starch change to when put in acid?
It's insoluble so it doesn't change into any color, however, the chemical changes into modified starch
A student adds iodine solution to egg white and waits for a color change How long with the student have to wait?
Forever! Its a protein and iodine solution test for starch.
What is the color of a solution when starch is added?
Benedicts tests for the presence of monosaccharides. It will turn a yellow to red color if it is a positive test, but it does not so starch does not contain monosaccharides. ...Actually..... If starch is heated at 250 degrees Celsius, it breaks down into sugar! a saccharide! The intense heat denatures the the starch and transforms it into sugar. Also, if you have starch and amylase ( enzyme found in your saliva) and heat that to 37 degrees Celsius, you will also get a sugar, but in the form of glucose!
What color does starch change to in the presence of potassium iodide and sodium hyphoclorite?
The color become intense blue.
What color red litmus put in saliva?
Well if you place blue litmus paper in saliva and it turns red, then the saliva is acidic. If you put red litmus in the saliva and it turns blue, then the saliva is alkaline. However, if the red litmus doesn't change colour and the blue litmus doesn't change colour, the saliva would be neutral.
What do tubers and root crops contain which make iodine to change color when dropped on them?
starch
