How does the respiratory system interact with the circulatory system 7th grade?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Select the correct answer from each drop-down menu proteins are

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.