Benedict Black
Benedict Black
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 1.5" ST. BENEDICT CRUCIFIX - BLACK  US $1.50
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A very interesting question?
A student was given a sample of food and asked to determine the types of nutrients present in the sample. The student placed half of the sample in a test tube with Benedict's solution and heated it. The solution turned brick red. When an iodine solution was added to the remainig half of the sample, it turned blue black.
The student can correctly conclude that the food sample contained...
a. monosaccharides,
b.polypeptides,
c. polysaccharides,
or
d. monosaccharides
It's been a while for me, but I also believe the answer is C.
Using benedicts solution, since it was red, I think that mean't there were no simple sugars, such as monosaccharides. I'm pretty certain with the iodine test though is that if it turns black (as it is normally a yellow-ish orange colour), that means there are complex sugars, therefore the polysacharides.
Polypeptides have to do with the proteins, which no tests were done to look for.