Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag?
Check all that apply.
NaCl solution
albumin solution
starch solution
albumin inside
Na+ and Cl^- outside.
Albumin and starch particles= larger
NaCl particles = smaller
In the process of dialysis, substances can diffuse across a semipermeable membrane, allowing smaller solute particles to pass through while retaining larger particles. Based on this information, we can determine which substances will be found outside the bag when placed in a dialyzing bag and immersed in distilled water.
1. NaCl solution: Yes, NaCl is a small solute particle and can easily pass through the semipermeable membrane, so it will be found outside the bag.
2. Albumin solution: No, albumin is a larger particle, and it cannot pass through the semipermeable membrane, so it will not be found outside the bag.
3. Starch solution: No, starch is a large particle, and it cannot pass through the semipermeable membrane, so it will not be found outside the bag.
Therefore, the substances that will be found outside the bag are NaCl solution.
To determine which substances will be found outside the dialyzing bag when immersed in distilled water, we need to consider the principles of dialysis and membrane permeability.
Dialysis is a process that separates solutes based on their differences in size and charge through a semi-permeable membrane. A dialyzing bag is a type of semi-permeable membrane that allows smaller molecules to pass through while restricting the movement of larger molecules.
1. NaCl solution:
NaCl (sodium chloride) is composed of small ions - sodium (Na+) and chloride (Cl-). Since the ions are small, they can pass through the pores of the dialyzing bag and diffuse into the distilled water outside the bag. Therefore, NaCl solution will be found outside the bag.
2. Albumin solution:
Albumin is a large protein molecule. Its size is larger than the pores of the dialyzing bag. Therefore, albumin molecules cannot pass through the bag, resulting in them being retained inside the bag. Therefore, albumin solution will not be found outside the bag.
3. Starch solution:
Starch is a large carbohydrate molecule. Like albumin, the size of starch is larger than the pores of the dialyzing bag. Hence, starch molecules cannot pass through the bag and will be retained inside the bag. Therefore, starch solution will not be found outside the bag.
Based on the explanations above, the substances that will be found outside the dialyzing bag when immersed in distilled water are only the NaCl solution.