AP Biology chapter 4 and 5 test
A.P. Biology: Chapter 4 & 5 Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. At which level of protein structure are interactions between the side chains (R groups) most important? a. primary d. quaternary b. secondary e. all of the above c. tertiary 2. All of the following nitrogenous bases are found in DNA except a. thymine. b. adenine. c. uracil. d. guanine. e. cytosine. 3. Which of the following best summarizes the relationship between dehydration reactions and hydrolysis? a. Dehydration reactions assemble polymers, and hydrolysis breaks down polymers. b. Hydrolysis only occurs in the urinary system, and dehydration reactions only occur in the digestive tract. c.