Osmosis Practice (finished) for psy 111 PDF

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This is a finished homework for biology 101...

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. Osmosis Practice: Complete this in Word, then upload to the assignment on Canvas .Use the following diagram to answer questions a, b and c below .1

Beaker C

Beaker B

40% Sugar

Beaker A

__10__% Sugar 100. Water

Sugar % 0 90% Water

__60__% Water

a) What is the solute concentration of Beaker A?

0%

b) What is the solute concentration of Beaker B?

10%

c) What is the solvent concentration of Beaker C?

60%

:Cell The diagram to the right depicts a cell submerged in a .2 solution. The cell membrane is permeable to water but not to sugar. Start by completing the % concentrations of the .intracellular and extracellular fluids

Sugar 30% Water 70% :Solution

Is the cytosol hypotonic, hypertonic or isotonic?

Sugar 60% Water 40%

hypertonic b) In what direction is water going to move? (into the cell or out of the cell?)out of the cell

c) Predict: What is going to happen to the size(mass) of the cell? The cell will shink

d) Predict: What is going to happen to the extracellular solute concentration? It will go

down 3. You prepare three bags containing different sucrose solutions (A = 15%, B = 30%, C = 65% sucrose). After weighing the bags you record their masses in the table. You then place your bags in beakers, all containing the same unknown concentration of sucrose and let them sit for one hour. Every 15 minutes you take the bags out and record their masses (Table 1).

1

.(Table 1: Mass (g) of bags A, B, and C over time (min (Mass of C (g

(Mass of B (g

(Mass of A (g

(Time (min

12.1

11.6

12.4

0

12.9

11.2

10.4

15

13.8

10.9

9.1

30

14.7

10.4

7.7

45

15.9

10

6.2

60

What is the tonicity of the unknown solution compared to bag A, bag B, and bag C, respectively? .Justify your answer For each bag, use the sentence structure: The unknown solution is __________-tonic compared) to Bag ___, because the mass ________________ ( increased or decreased) indicating that water (.(flowed ______________________________________ (describe the direction of osmosis

:A The unknown solution is hypertonic compared to Bag A, because the mass decreased indicating .that water flowed out of the bag

:B The unknown solution is hypertonic compared to Bag B, because the mass decreased indicating .that water flowed out of the bag

C The unknown solution is hypotonic compared to Bag C, because the mass increased indicating that water / https://www.clipartwiki.com/iclip/iJxwTw_vaso-de-precipitado-dibujo 1

.flowed into the bag...