Question

Which statement is the best evidence for the macromolecule you concluded was present in the egg white solution?

Biuret's solution tests for proteins and turned a deep blue-black, so that means the egg solution was positive for proteins.

Iodine tests for starch and turned a deep blue-black, so that means the egg solution was positive for carbohydrates.

Biuret's solution tests for proteins and turned a light blue, so that means the egg solution was negative for proteins.

Iodine tests for starch and turned a deep blue-black, so that means the egg solution was negative for carbohydrates.

Answer 1

https://prnt.sc/pbzj06

Answer 2

Still the same assignment mhmm

What macromolecule is the biuret test trying to identify?
What macromolecules does the iodine test identify?

Answer 3

@iosangel

Answer 4

Proteins and carbohydrates

Answer 5

Which answer is for which

Answer 6

biuret test is Proteins and for iodine carbohydrates?

Answer 7

Correct.

Now do you think water has any proteins or carbohydrates?

Answer 8

No

Answer 9

That's spot on. So that means water is a negative control and we can compare the results of the egg whites against the water to see what macromolecules that egg whites contain

Answer 10

So comparing egg whites to water, which test shows a different result? That suggests the test was positive and the macromolecule that the test identifies is present in that solution.

Answer 11

the buirets test yields different results.

Answer 12

i understand now thank you very much

Answer 13

Perfect! I'm glad I was able to make you reason through this question much better than the previous one. If you want to check the answer to make sure, I'd be more than happy to!

Also ty for the non-math questions, usually it's always math questions and it's nice to see something different to answer for a change