An aqueous mixture containing starch (a colloid), Nacl, glucose, and albumin (a colloid) is placed in a dialyzing bag and in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

a) starch outside

b) water inside only

c) albumin inside

d) albumin inside and outside

e) starch inside and outside

c) albumin inside

Explanation:

Let us see look closer at each answer and see why it is wrong/correct.

a) Starch cannot be outside the bag because the bag isn't permeable to starch. The starch stays inside

b) There cannot be water inside only because it would mean starch and albumin diffused out and they cannot pass through the bag

c) This is correct. The bag isn't permeable to albumin so it stays inside

d) Albumin cannot be outside the bag because the bag isn't permeable to albumin. The albumin stays inside

e) Starch cannot be outside the bag because the bag isn't permeable to starch. The starch stays inside