LEHNINGER PRINCIPLES OF BIOCHEMISTRY CH. 1-6 QUESTIONS WITH CORRECT ANSWERS

Which of the following are characteristics of living systems? A. High degree of complexity and organization B. Extraction, transformation, and systematic use of energy to create and maintain structures and to do work C. Interactions of individual components are dynamic and coordinated D. A capacity for fairly precise self-replication while allowing enough change for evolution E. All of the above CORRECT ANSWER E. All of the above Which of the following structures are components of all living cells? A. Ribosomes B. Nuclear membrane C. Plasma membrane D. Cytoplasm E. 1, 3 and 4 CORRECT ANSWER E. 1, 3 and 4 Amino acids are the basic building blocks of proteins and nucleosides are the monomeric units of nucleic acids. Do you agree? A. Yes B. N CORRECT ANSWER A. yes Which of the following combination of elements make up more than 99% of the mass of most cells? A. H, N, O, P B. H, N, O, C C. H, C, N, P