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Worksheets

Biomolecules

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

The Biuret Test will test for the presence of _________________.

a)

Protein

b)

Lipids

c)

Starch

d)

Simple Sugars

2.

The Sudan IV Test will test for the presence of _________________.

a)

Protein

b)

Lipids

c)

Starch

d)

Simple Sugars

3.

The Benedict Test will test for the presence of _________________.

a)

Protein

b)

Lipids

c)

Starch

d)

Simple Sugars

4.

The Iodine Test will test for the presence of _________________.

a)

Protein

b)

Lipids

c)

Starch

d)

Simple Sugars

5.

What are some characteristics of a positive Sudan IV result:

a)

The solution will separate and produce a dark pink/red ring indicating the presence of lipid

b)

The solution will turn a dark brown color indicating starch

c)

The solution will turn a bright blue color indicating the presence of simple sugars

d)

The solution will dark purple color indicating the presence of protein

6.

If I wanted to see if my new Low Carb Bread had a lot of starch in it I would use which of the following test to decide?

a)

Iodine Test

b)

Benedict's Test

c)

Sudan IV Test

d)

Biuret Test

7.

My cousin said that Gatorade is filled with protein, I don't believe him. Which test should I run to see if he is right or wrong?

a)

Biuret

b)

Iodine

c)

Sudan IV

d)

Benedict

8.

A positive Biuret's Test will turn which color?

a)

Red

b)

Blue

c)

Purple

d)

Yellow

9.

In the video, the scientist said that Sudan IV is a _________ dye, which is why we can use it to identify _______ easily.

a)

lipophilic, fats

b)

lipophobic, carbohydrates

c)

lipophilic, simple sugars

d)

lipophobic, proteins

10.

When one of our reagents contacts the starch in this bread, the white bread turns blue-black. This is an example of which of the following tests?

a)

Iodine

b)

Biuret

c)

Sudan IV

d)

Benedict's