Biomolecules Structure and Function Worksheet

Name: ______________________________

Date: _____________________

Homework: The Function of Biomolecules Answer the following questions about the biomolecules. 1. Both complex carbohydrates and lipids can provide energy to your body as they are broken down. However, only carbohydrates are broken down into which of the following subunits? A sugars B amino acids C nucleotides D fats 2. Amino acids and sugars are both required by animals to maintain their health. Without a diet containing both of these, animals cannot survive. Amino acids are obtained by animals when they digest – A carbohydrates B proteins C nucleic acids D lipids 3. If a complex molecule can be digested to produce monosaccharides and disaccharides, then the original molecules should be classified as which type of biomolecule? A lipids B proteins C nucleic acids D carbohydrates 4. Triglycerides are compounds created by combining a molecule of glycerol with three fatty acids. Triglycerides are used to store large amounts of energy and are classified as a form of which biomolecule? A carbohydrates B proteins C nucleic acids D lipids 5. Every living cell, DNA and RNA serve as the molecules that store and transmit genetic information throughout the cell. These molecules are both forms of which biomolecule? A nucleic acids B carbohydrates C lipids D proteins Answer the questions below by selecting one of the following answer choices. 1. Which diagram accurately depicts a nucleic acid? _____

A

2. Which diagram accurately depicts a carbohydrate? _____ B

3. Which of the diagrams accurately depicts a protein? _____ 4. Which of the diagrams accurately depicts a lipid? _____ 5. Which diagram can also be called a fat? _____

C

6. Which diagram does NOT represent a polymer? _____ 7. Which diagram shows part of a cell’s genetic material? _____ D

Answer the questions below by selecting one of the following answer choices. 1. Which TWO molecules are used to store energy? ____ & ____ A 2. Which molecule is used to transmit information? _____ 3. Which of the diagrams accurately depicts a lipid? _____ 4. Which diagram can also be called a polypeptide? _____

B C

5. Which diagram can also be called an polysaccharide? _____ 6. Which of the diagrams accurately depicts a protein? _____ 7. Which diagram accurately depicts a carbohydrate? _____ 8. Which diagram accurately depicts a nucleic acid? _____

D

Use the diagram above to answer questions 1-3. 1. In the diagram above, which of the following is the identity of molecule A? A carbohydrates B proteins C nucleic acids D lipids 2. In the diagram above, which of the following is the identity of molecule B?

A carbohydrates

B proteins

C nucleic acids

D lipids

3. Which of the following is the best reason that both of these molecules would be considered organic compounds? A They both contain atoms of oxygen C They both contain carbon and hydrogen B They are both used to store energyD They are both found in cellular structures

Nucleic acid

Carbohydrate

4. A primary difference between the two types of molecules shown above is that only the nucleic acid is able to – A store chemical energy C be used to create cell walls B transmit information D be classified as a polymer

5. Which of the following molecules would be considered an organic compound? A Water (H2O) B Rust (Fe2O3) C Methane (CH4) D Salt (NaCl) 6. The diagram to the right is an example of which type of molecule? A carbohydrates C proteins B nucleic acids D lipids

1

2

3

Carbohydrates are an important energy source for all living things. 7. Carbohydrates are known by what other name? ___________________________________ 8. Define the following prefixes: Mono- _____________

Di- _____________

Poly- _____________

9. Which diagram of carbohydrates shown above is a monosaccharide? __________________ 10. Which diagram of carbohydrates shown above is a disaccharide? ______________________ 11. Which diagram of carbohydrates shown above is a polysaccharide? ____________________ Use the information in the diagrams to determine which biomolecules are being compared 12. Which set of biomolecules is being compared in the diagram to the right? A carbohydrates and proteins B nucleic acids and lipids C carbohydrates and lipids D nucleic acids and proteins 13. Which set of biomolecules is being compared in the diagram to the left? A nucleic acids and carbohydrates B proteins and lipids C lipids and nucleic acids D nucleic acids and proteins 14. Which set of biomolecules is being compared in the diagram to the right? A carbohydrates and lipids B nucleic acids and carbohydrates C nucleic acids and proteins D proteins and carbohydrates