Two semi-permeable bags $‘ P^{'}$ and $‘ Q^{'}$ containing $2 %$ sucrose are placed in two beakers containing water and $10 %$ sucrose respectively. Which one of the following outcomes is true?

Bag in

‘ P^{'}

becomes flaccid due to exosmosis

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Bag in

‘ P^{'}

becomes turgid due to endosmosis

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Bag in

‘ Q^{'}

becomes turgid due to endosmosis

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Concentration of sucrose remains unchanged in both

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Solution

The correct option is B Bag in $‘ P^{'}$ becomes turgid due to endosmosis
Osmosis is the net movement of solvent molecules into a region of higher solute concentration through a semi-permeable membrane. In the given question, one of the $2 %$ sucrose containing bags (semi-permeable) i.e., 'P' bag is placed in a water-containing beaker. Clearly, the concentration in the bag is more than the beaker and as a result, water will move through the semi-permeable membrane (endosmosis) and make the bag turgid.

On the other hand, the second beaker contains $10 %$ sucrose solution which is more concentrated than the semi-permeable bag's sucrose concentration (Q). Hence, water will move out of the bag to the beaker and make the bag flaccid (exosmosis).

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Q. Five dialysis bags, impermeable to sucrose, were filled with sucrose solution of various concentrations. These were then placed into a beaker of 0.6 M sucrose solution. The bags were weighed every 10 minutes and the percentage change in mass graphed.

Which line represents the bag that contains a solution that is hypertonic at the end of 60 minutes?

Q. Read the following passage and answer the following questions.
Dialysis tubing is a semipermeable membrane. It allows small molecules, such as water, to pass through easily, while larger molecules, such as sucrose, are restricted. Movement of molecules across the tubing is due to concentration gradients. In an experiment designed to study osmosis, several pieces of dialysis tubing were filled with sucrose solutions of varying concentration and placed in beakers containing distilled water. The rate and direction of water movement was determined by weighing the bags before and after placing them in the distilled water. The data are recorded below.
Table 1

Tube number	Tube contents (beaker contents)	Mass(g) 0 minutes	Mass(g) 15 minutes	Mass (g) 30 minutes	Mass(g) 45 minutes	Mass (g) 60 minutes
1	Distilled water (distilled water)	22.3 g	22.4 g	22.2 g	22.3 g	22.3 g
2	10% sucrose (distilled water)	24.8 g	25.3 g	25.7 g	26.4 g	26.9 g
3	40% sucrose (distilled water)	25.1 g	26.3 g	27.5 g	28.9 g	29.6 g
4	Distilled water (40% sucrose)	22.7 g	21.3 g	20.5 g	19.8 g	18.7 g

Why does the mass of Tube 3 increase while the mass of Tube 4 decreases?

Q.
Read the following passage and answer the following questions.
Dialysis tubing is a semipermeable membrane. It allows small molecules, such as water, to pass through easily, while larger molecules, such as sucrose, are restricted. Movement of molecules across the tubing is due to concentration gradients. In an experiment designed to study osmosis, several pieces of dialysis tubing were filled with sucrose solutions of varying concentration and placed in beakers containing distilled water. The rate and direction of water movement was determined by weighing the bags before and after placing them in the distilled water. The data are recorded below.Table 1

Tube number	Tube contents (beaker contents)	Mass(g) 0 minutes	Mass (g) 15 minutes	Mass (g) 30 minutes	Mass (g) 45 minutes	Mass (g) 60 minutes
1	Distilled water (distilled water)	22.3 g	22.4 g	22.2 g	22.3 g	22.3 g
2	10% sucrose (distilled water)	24.8 g	25.3 g	25.7 g	26.4 g	26.9 g
3	40% sucrose (distilled water)	25.1 g	26.3 g	27.5 g	28.9 g	29.6 g
4	Distilled water (40% sucrose)	22.7 g	21.3 g	20.5 g	19.8 g	18.7 g

Cell membranes are also semipermeable, allowing water but not other substances to cross easily. A red blood cell placed in a 0.9% NaCl solution will neither swell nor shrivel. Based on this knowledge, and the information presented in Table 1, what would happen to a red blood cell placed in a 20% NaCl solution?

The given figure shows demonstration of osmosis. A thistle funnel is filled with sucrose solution and kept inverted in a beaker containing water. In case sucrose diffuses out through the membrane, will this equilibrium be ever reached?

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Two semi-permeable bags ‘P′ and ‘Q′ containing 2% sucrose are placed in two beakers containing water and 10% sucrose respectively. Which one of the following outcomes is true?

Two semi-permeable bags $‘ P^{'}$ and $‘ Q^{'}$ containing $2 %$ sucrose are placed in two beakers containing water and $10 %$ sucrose respectively. Which one of the following outcomes is true?