Macromolecules

Question 1

Glucose, fructose, and galactose are all examples of simple sugars called:

Answer 1

Monosaccharides

Question 2

Reducing sugars get their name because they

Answer 2

donate electrons to other molecules

Question 3

What is the name for the reducing sugars that we performed in lab

Answer 3

Benedict’s test

Question 4

In the Biuret’s test, a positive result was indicated by

Answer 4

a lavender color change

Question 5

Lipids are a diverse group of molecules, but all have what property in common

Answer 5

Hydrophobic

Question 6

The bonds formed between amino acids that make up proteins are called

Answer 6

peptide bonds

Question 7

Of the 4 tests that we ran, the Sudan IV test was different because of the way the assay worked. Briefly explain how the mechanism of the assay was different than the other three tests.

Answer 7

the sudan IV test used a physical change while the other three are all chemical changes

Question 8

Explain why starches and other complex carbohydrates are unable to function as reducing sugars wven though they are made up of units of glucose molecules

Answer 8

reducing sugars are able to go back and forth from chain form to linear form. Complex sugars are locked in chain forms since they are monosaccharides linked by glycosidic bonds