A cell grows and carries out all normal metabolic functions and processes in a period called G1 of the cell cycle, as seen here. G1 is followed by replication of the DNA, during the S phase. The S phase or synthesis phase, is period during which a cell replicates its DNA. Growth continues throughout G2 and then finally mitosis occurs. All of this requires energy. All BUT ONE is a step in supplying energy to maintain homeostasis and promote cell division. That is

1. which of the following levels of protein organization shows the complete 3-d arrangement of the polypeptide chain? a) primary b) secondary c) tertiary d) quaternary 2. the carboxyl groups on a protein molecule are composed of which of the following elements? a) nitrogen and hydrogen b) carbon, hydrogen, and oxygen c) carbon and hydrogen d) nitrogen, oxygen, and carbon 3. what part of the protein molecule makes it unique from other proteins? a) the carboxyl group b) the amino group c) the peptide group d) the r group 4. which of the following is an example of a protein that plays a direct role in immune function? a) collagen b) antibodies c) enzymes d) hormones 5. which of the following statements correctly describes the composition of proteins? a) most are composed of 20 common amino acids. b) most are composed of 10 common amino acids. c) most are composed of 20 common fatty acids. d) most are composed of 10 common fatty acids.