Chemistry for Physiology

The shape produced by folding is the tertiary structure. Primary structure is the sequence in which the amino acids are joined. Secondary structure is any repetition of the primary structure. Quaternary structure does not exist.

Choice A is incorrect as a mole of an ionic substance will result in 2 or 3 osmoles of dissolved particles. (Choices B and C are incorrect.)

The term electrolyte is applied to any species of dissolved particle that has an electric charge.

Mass of 1 mol of lactose = (12 × 12) + (22 × 1) + (11 × 16) = 144 + 22 + 176 = 342 g.

All other choices are wrong.

This is a definition of electrolyte. Choice C is restricted to molecules; and there must be a solution involved, so D is wrong.

Alkalosis refers to any blood pH above the upper limit of normal which is 7.45.

While the solute particles are indeed diffusing through the membrane, the presence of a membrane makes dialysis the appropriate term to use. Diffusion is also applied to the movement of particles within a solution even when they do not cross a membrane.

Acidosis refers to any blood pH below the lower limit of normal which is 7.35.

The hydrogen bond is the weakest. Almost all covalent bonds are polar bonds.