The structures of proteins and nucleic acids in living organisms differ in that А.
proteins can take a variety of shapes, and nucleic acids tend to form linear chains.
proteins tend to form rings, and nucleic acids tend to form globes
proteins tend to form helices, and nucleic acids tend to take irregular shapes.
C
D
proteins tend to form branched chains and nucleic acids can take a variety of shapes

Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides