Which of the following is NOT true of saturated and unsaturated fats? A. Saturated fats are saturated with hydrogen while unsaturated fats are not because they do not have electrons available to bond with hydrogen. B. Saturated fats can pack more tightly and form solids at room temperature while unsaturated fats are liquid at room temperature. C. Saturated fats, because they lack double bonds between their carbon atoms, stay liquid at room temperature while unsaturated fats form solids.

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.