57. Multiple Answers. Which of the following statement(s) below correctly describe(s) what is happening in the diagrams that follow? HB2C1
a. requires the use of energy
b. does not require the use of energy
c. moves either large particles or large quantities of particles
d. concentrates molecules on one side of the membrane

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.