Unit 1 Quiz

1. What are the monomers of proteins called?

• nucleic acids
• monosaccharides
• amino acids
• fatty acids

2. How do enzymes affect reaction rate?

• they slow down cellular reaction be inhibition
• they speed up reactions by lowering the activation energy
• they speed up reactions by providing energy
• they slow down cellular reactions by lowering the reaction temperature

3. Which TWO are made up of nucleotides?

• polysaccharide
• DNA
• steroid hormone
• RNA

4. Cellulose is classified as which of the following?

• a polysaccharide
• an amino acid
• a nucleic acid
• a steroid

5. What is the process called that binds monomers together to form polymers and has water as a by product?

• photosynthesis
• homeostasis
• dehydration synthesis
• ATP production

6. Carbohydrates and lipids share which TWO of the following characteristics?

• contain nitrogen
• used for energy
• dissolve in water
• contain carbon, hydrogen, and oxygen

7. What is cholesterol?

• a nucleic acid
• an amino acid
• a carbohydrate
• a lipid

8. Which TWO of the following are primary functions of fat?

• long-term energy storage
• storage of genetic information
• insulation
• catalyst for chemical reactions

9. Which TWO of the following factors denature an enzyme affecting its ability to function?

• pH level
• enzyme concentration
• temperature
• humidity

10. What nitrogen base matches with adenine (A) in DNA

• cytosine (C)
• guanine (G)
• thymine (T)
• uracil (U)