It's considered to be an advantage to have lungs with increased capacity, because with increased capacity
a. anaerobic exercise is easier.
b. the lungs will fight off colds and influenza.
c. the chest looks more "buff."
d. the lungs can better exchange oxygen and waste products in the blood.

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.