Tutor profile: Cameron M.

How many millimoles are in a 5M concentration solution of hydrochloric acid (2 liter solution)?

Molarity= moles/liter; thus the moles of hydrochloric acid in the solution is equal to the concentration of solution (5M) X the liters of the solution. Consequently, there are 10 moles in of HCl in the solution. Multiplying 10 by 1000 gives us 10,000 millimoles of HCl in the solution.

Which amino acid contributes most to disulfide bond formation in polypeptide chains?

The amino acid which contributes most to disulfide bond formation is cysteine. This is due to the presence of a sulfhydryl (SH) group in its side chain.

In the blood flow circuit of the circulatory system, which is the artery that carries oxygenated blood to the tissues of the body?

The aorta carries oxygenated blood to the tissues. The purpose of this is to unload oxygen at all the tissues, and then load carbon dioxide back into the blood for eventual disposal in the lungs.