The characteristics of each test include:
<u>Benedicts test:</u>
- A positive result indicates reducing sugar.
- A positive result is green to orange.
<u>Iodine test:</u>
- A positive result indicates starch
- A positive result is a blue-black.
<u>Dische diphenylamine test:</u>
- A positive result indicates DNA.
- A positive result is blue.
<u>Biuret test:</u>
- A positive result indicates proteins.
- A positive result is violet.
<u>Sudan 4 test:</u>
- A positive result indicates lipids.
- Positive result forms red droplets.
<h3>What are the effect of the test? </h3>
When carbohydrate solution is heated with Benedict's reagent, the reducing sugars will reduce the copper ions to orange in color.
Potassium iodide reagent is added to the solution for testing the presence of starch. The iodine then goes inside the coil of starch causing a blue to black color
Learn more about iodine test on:
brainly.com/question/1698910
41. C.DNA is made up of proteins, which tells a cell how to function
42. <span>C. So they can move materials from one area of the cell to another quickly
A DNA is made of proteins which was synthesized by ribosomes of the cell to produce protein and these proteins are churned into mRNA and then these mRNA and used to catalyse the DNA production. DNA of a cell in the nucleus is the programmed individuality that controls, manages and organises the entire cell to function and initiate cellular activities.
It is more efficient, thus, to move materials quickly.
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