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8G Science HW#8: Lesson 4.3

Total questions: 10

Worksheet time: 3hrs 30mins

Name
Class
Date
1.

True or False:

The four main classes of organic compounds in living things are carbohydrates, proteins, lipids and amino acids.

a)

True

b)

False

2.

True or False:

Complex carbohydrates are built from sugars.

a)

True

b)

False

3.

True or False:

The building blocks of proteins are fats and oils.

a)

True

b)

False

4.

True or False:

Nucleic acids are made from nucleotides.

a)

True

b)

False

5.

One of the most important sugars in the body. Sometimes called “blood sugar” because it circulates to all body parts via blood is called _______.

a)

Glucose

b)

Sucrose

c)

Fructose

d)

Cellulose

6.

Fill in the blank:

_________ are polymers made from amino acids that are used to build and repair body parts.

a)

Protein

b)

Carbohydrates

c)

Starch

d)

Lipids

7.

An organic compound that’s like a helper molecule for a variety of chemical reactions in the body is called _____.

a)

Nucleic Acid

b)

Amino Acids

c)

Minerals

d)

Vitamin

8.

The substance that provide the energy and raw materials the body needs to grow, repair worn parts, and function properly is called ______.

a)

Nutrients

b)

MInerals

c)

Protein

d)

Carbohydrates

9.

Fill in the blank:

___________ are made up of long chains of simple carbohydrates bonded together.

a)

Lipids

b)

Amino Acid

c)

Complex Carbohydrates

d)

Protein

10.

Fill in the blank:

_____________ are energy-rich compounds that are made up of carbon, oxygen and hydrogen and include fats, oils, waxes, and cholesterol. They release twice the energy than carbohydrates.

a)

Lipids

b)

Amino Acid

c)

Complex Carbohydrates

d)

Protein