AP Biology- Biochemistry- 10 Questions 1. Which of the following is the primary building block of proteins? a) Nucleotides b) Monosaccharides c) Amino acids d) Fatty acids 2. Which of the following is the primary function of carbohydrates in living organisms? a) Energy storage and structural support b) Enzyme catalysis and cell signaling c) Information storage and transmission d) Cell membrane formation and insulation 3. Which of the following biomolecules is composed of nucleotides? a) Carbohydrates b) Proteins c) Lipids d) Nucleic acids 4. What is the main function of enzymes in biological systems? a) They provide structural support to cells. . b) They store genetic information. c) They facilitate chemical reactions by lowering the activation energy. d) They transport molecules across cell membranes 5. Which of the following is a characteristic of saturated fatty acids? a) They contain double bonds between carbon atoms. b) They are typically liquid at room temperature. c) They are commonly found in plant oils. d) They have no double bonds and are solid at room temperature. 6. Which of the following is the monomer unit of nucleic acids? a) Amino acids b) Monosaccharides c) Nucleotides d) Fatty acids 7. What is the primary function of DNA in living organisms? a) Energy storage b) Enzyme catalysis c) Genetic information storage d) Cell membrane formation 8. Which of the following is an example of a structural protein? a) Hemoglobin b) Insulin c) Collagen d) Amylase 9. What is the main function of ATP (adenosine triphosphate) in cells? a) Energy storage and transfer b) Genetic information storage c) Enzyme catalysis d) Cell membrane formation 10. Which of the following is the most abundant organic compound on Earth and serves as a structural component in plants? a) Cellulose b) Chitin c) Starch d) Glycogen Loading … Back to AP Practice Test
