Biochemistry Module
Biomolecules Worksheet
Explain how monomers are linked together and how they are disassembled (include an illustration of each process)
Use the diagram below and then answer the following questions.
- Is the reaction a condensation reaction or hydrolysis?
- How many molecules of water are produced in order to form the peptide bonds?__________
Macromolecule properties
Complete the following chart
| Class | Monomer | Functions |
|
|
Monosaccharide | |
| Energy storage, membranes and steroids | ||
| Proteins
|
||
|
|
Nucleotides |
Proteins
Draw and explain the structure of an amino acid. Explain how it is possible for proteins to vary extensively when there are only 20 naturally occurring amino acids and what determines this variety.
What is a peptide? What is a polypeptide?
Explain the functions of proteins in the cell and include an example of each type.
Describe the different levels of protein structure in detail.
Lipids
Explain why people tend to store more fat with age.
Describe the function of lipids
Carbohydrates
What elements make up a carbohydrate? What ratio are these always found in?
What is the function of carbohydrates?
What is a disaccharide? Draw the reaction of two glucose molecules that combine to form maltose (draw the structures)
What are polysaccharides? Describe the structure and function of starch, cellulose, and glycogen.
Study the diagrams below, which show carbohydrate molecules. Beside each molecule, write whether it is a monosaccharide, a disaccharide, or a polysaccharide.
1._______________________ 2._________________________
3.________________________________
- What is the function of #1 in our bodies?
- What is the name of the chemical process that joined the disaccharide and the polysaccharide?
Part A. Classify each as a carbohydrate, protein, lipid or nucleic acid(only used once).
| 1. | Starch | 9. | Polysaccharide |
| 2. | Cholesterol | 10.__________________ | Phospholipid |
| 3. | Steroid | 11. | DNA & RNA |
| 4. | Glycogen | 12. | Monosaccharide |
| 5. | enzyme | 13. | Cellulose |
| 6. | saturated fat | 14. | amino acid |
| 7. | polypeptide chain | 15. | unsaturated fatty acid |
| 8. | Glucose |
Part B. Identify the specific molecule (use the above terms) for each description. Some terms may be used more than once. Nucleic acid is used only once.
- provides long-term energy storage for animals
- provides immediate energy
- stores hereditary information
- speeds up chemical reactions by lowering activation energy
- one sugar
- monomer of proteins
- ______________________________ soluble only in hydrophobic solvents
- many sugars
Part C. Which food molecule (monosaccharide, polysaccharide, lipid, protein) would you eat if…
- …you needed a quick boost of energy?
- you wanted to grow strong nails?
- …you wanted to get bigger muscles?
