Biochemistry Questions?
A) Heat B) water C) salts of heavy metals D) Alcohol E) agitation
Which substance gives a blue-black color with a solution of iodine in KI?
a) cellulose b) glycogen c) glucose d) starch e) surcose
All of the following are sugars except---
a) glucose b) starch c) cellulose d) sucrose e) more than one of these
Answer:
Water is not a denaturing agent, proteins are often worked with in a medium of water. However, heat, salts of heavy metals, alcohols, and agitation are denaturing agents.
Strach reacts with KI to form a dark blue complex
Glucose and Sucrose are the only sugars there. So the answer is e
Water ( but better check this one again)
Starch
Cellulose
1. water is the correct answer.
3. E is the correct answer, both cellulose and starch are bipolymers made up of sugar, but are not, themselves sugar.
1. water
2. starch
3. e, starch and cellulose
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