1. Section 3-3 Review Questions
Chemical Compounds in Cells

2. Elements What is an element? What is an atom?
List some elements found in living things.
H2O is the chemical formula for water. What two elements is water composed of? (You may need to use your periodic table in your agenda)

3. Compounds What is a compound? What is a molecule?
T or F. Two different atoms will create a compound. Be sure to explain your reasoning.
What important roles does water play in cells?
How are inorganic and organic compounds different?

4. Carbohydrates Define carbohydrates.
What are the two types of carbohydrates?
Give three examples for each type of carbohydrate.
What is the importance of carbohydrates for the cell?

5. Lipids Compare and contrast lipids and carbohydrates.
List three types of lipids.
What is the function of lipids?

6. Proteins Define protein. Name five foods rich in proteins.
Explain the structure of proteins.
What are the three functions of proteins?
Explain how saliva acts as an enzyme.

7. Nucleic Acids What are nucleic acids made of?
Why are nucleic acids important?
Determine the two types of nucleic acids.
What is the function for each type of nucleic acid?