BIO 1404 PRACTICAL Test |Questions & 100% Correct Answers
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Course
Bio 1404
Institution
Bio 1404
ntermediate color reaction for iodine test - Glycogen, a common
polysaccharide in animals, has a slightly different structure than does starch
negative- tube with distilled water
positive- glucose & fructose solution - Which one of the solutions is the
positive control, and which one of the sol...
BIO 1404 PRACTICAL Test |Questions &
100% Correct Answers
intermediate color reaction for iodine test - ✔✔Glycogen, a common
polysaccharide in animals, has a slightly different structure than does starch
negative- tube with distilled water
positive- glucose & fructose solution - ✔✔Which one of the solutions is the
positive control, and which one of the solutions is the negative control for the
Benedict's reaction?
potato juice because the benedict reaction was blue in onion juice indicating no
reducing sugar - ✔✔Which contains more reducing sugars, potato juice or
onion juice? How do you know?
negative control- tube with distilled water
positive control- tube with starch & potato juice - ✔✔Which one of the solutions is
the positive control, and which one of the solutions is the negative control for the
Iodine reaction?
potato juice since there is more starch present - ✔✔Which colors more intensely
for the Iodine Reaction, onion juice or potato juice? Why?
biuret test - ✔✔identifies peptide bonds (C-N bonds) in proteins that form
complexes with Cu2+
biuret test positive reaction - ✔✔a violet color
individual amino acids do not react positively - ✔✔in the biuret test reaction
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