Biological Molecules Worksheet
Explore the four major classes of biological molecules: carbohydrates, lipids, proteins, and nucleic acids, and their roles in living organisms.
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Biological Molecules Worksheet
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is NOT one of the four major classes of biological macromolecules?
Carbohydrates
Vitamins
Proteins
Nucleic Acids
2. Which biological molecule is primarily used for long-term energy storage and insulation?
Carbohydrates
Proteins
Lipids
Nucleic Acids
3. Amino acids are the building blocks of which macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
4. The primary function of carbohydrates in living organisms is to provide .
5. DNA and RNA are examples of , which carry genetic information.
6. Enzymes, which speed up biochemical reactions, are a type of .
7. The monomers of nucleic acids are called .
8. Describe one difference between saturated and unsaturated fats.
9. Explain the importance of proteins in the human body, providing at least two examples of their functions.
Match each biological molecule with its primary function.
10. Carbohydrates
a. Genetic information storage and transfer
11. Lipids
b. Primary source of quick energy
12. Proteins
c. Long-term energy storage, insulation, cell membranes
13. Nucleic Acids
d. Structure, enzymes, transport, defense
14. All lipids are hydrophilic (water-loving).
True
False
15. Deoxyribonucleic acid (DNA) contains the sugar ribose.
True
False
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