Lecture 5 Dosage 1

The viscosity of lyophobic colloids is greatly increased as the concentration increases

• False

• True

Association colloids is spontaneously prepared as the concentration of amphiphile exceeds the CMC

• True

• False

During the purification of colloids, the semi permeable membrane prevent passage of colloidal particles & allow passage of small molecules & ions (impurities) such as urea, glucose, and sodium chloride, to pass through

• True

• False

Cellophane membrane passes urea, glucose, electrolytes as well as plasma proteins & blood cells

• False

• True

Substances present in excess in blood (e.g. urea) diffuse from blood to the rinsing solution

• True

• False

Substances which are deficient in blood (e.g. bicarbonate) diffuse from the blood to the rinsing solution.

• False

• True