Suppose a fungus destroys the central xylem and phloem tissues in the roots of a tree. what function of the root system will be lost because of this damage?

a. the roots will no longer be able to provide structural support.
b. the roots will no longer be able to store glucose and water.
c. the roots will not be able to transport minerals and water.
d. the roots will not be protected from water loss to the surroundings.

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.