Insects have open circulatory systems that directly bathe their organs with fluids. considering that this form of circulatory system is less efficient than a closed system, how are insects able to maintain life processes at remarkably high metabolic rates?

Diffusion and osmosis are forms of passive transport

Where in the cell are ribosomes made?

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.