Beaker Osmosis Solutions Worksheet
Beaker Osmosis Solutions Worksheet
Cell Transport • Water Gradients • Solution Tonicity
Name:
Date: Period:
TASKS For each beaker:
⭕ CIRCLE MOST H₂O | ⭐ STAR LEAST H₂O | Draw flow arrow (➡️) | Label Solution Tonicity
Beaker 1 solute(salt)+H₂O =100% salt water
Beaker Solution
Solute (salt): 20% • Water: 80%
Cell
Solute: 5% • Water: 95%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 2 sugar + H₂O = 100% sugar water
Beaker Solution
Solute (sugar): 3% • Water: 97%
Cell
Solute: 15% • Water: 85%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 3 solute + H₂O = 100%
Beaker Solution
Solute: 10% • Water: 90%
Cell
Solute: 25% • Water: 75%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 4 Solute + H₂O = 100%
Beaker Solution
Solute: 18% • Water: 82%
Cell
Solute: 8% • Water: 92%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 5 Check Carefully!
Beaker Solution
Solute: 10% • Water: 90%
Cell
Solute: 10% • Water: 90%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 6 Solute + H₂O = 100%
Beaker Solution
Solute: 5% • Water: 95%
Cell
Solute: 30% • Water: 70%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 7 Solute + H₂O = 100%
Beaker Solution
Solute: 28% • Water: 72%
Cell
Solute: 12% • Water: 88%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 8 Solute + H₂O = 100%
Beaker Solution
Solute: 15% • Water: 85%
Cell
Solute: 1% • Water: 99%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 9 Solute + H₂O = 100%
Beaker Solution
Solute: 4% • Water: 96%
Cell
Solute: 16% • Water: 84%
⭕ Most H₂O: [ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Tonicity Reference:
Hypertonic: higher solute / lower H₂O than cell (water exits) • Hypotonic: lower solute / higher H₂O than cell (water enters) • Isotonic: equal solute & H₂O (no net flow)
Beaker Osmosis Answer Key
Teacher Reference
Beaker Osmosis Solutions • Answer Key
Full Solutions • Water Flow Directions • Tonicity Classifications
Grading Scale 4 pts / beaker = 36 pts total
CORRECT ANSWERS:
Hypertonic (4): Beakers 1, 4, 7, 8 (Water exits cell) | Hypotonic (4): Beakers 2, 3, 6, 9 (Water enters cell) | Isotonic (1): Beaker 5 (Equilibrium)
Beaker 1 solute(salt)+H₂O =100% salt water
Beaker Solution ⭐ LEAST H₂O
Solute (salt): 20% • Water: 80%
H₂O exits cell ⬆️
Cell ⭕ MOST H₂O
Solute: 5% • Water: 95%
⭕ Most H₂O: [ ✓ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ✓ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ✓ ] Out [ ] None
Solution Tonicity:
[ ✓ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 2 sugar + H₂O = 100% sugar water
Beaker Solution ⭕ MOST H₂O
Solute (sugar): 3% • Water: 97%
H₂O enters cell ⬇️
Cell ⭐ LEAST H₂O
Solute: 15% • Water: 85%
⭕ Most H₂O: [ ] Cell [ ✓ ] Soln [ ] Equal
⭐ Least H₂O: [ ✓ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ✓ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ✓ ] Hypotonic [ ] Isotonic
Beaker 3 solute + H₂O = 100%
Beaker Solution ⭕ MOST H₂O
Solute: 10% • Water: 90%
H₂O enters cell ⬇️
Cell ⭐ LEAST H₂O
Solute: 25% • Water: 75%
⭕ Most H₂O: [ ] Cell [ ✓ ] Soln [ ] Equal
⭐ Least H₂O: [ ✓ ] Cell [ ] Soln [ ] Equal
➡️ Net Flow: [ ✓ ] In [ ] Out [ ] None
Solution Tonicity:
[ ] Hypertonic [ ✓ ] Hypotonic [ ] Isotonic
Beaker 4 Solute + H₂O = 100%
Beaker Solution ⭐ LEAST H₂O
Solute: 18% • Water: 82%
H₂O exits cell ⬆️
Cell ⭕ MOST H₂O
Solute: 8% • Water: 92%
⭕ Most H₂O: [ ✓ ] Cell [ ] Soln [ ] Equal
⭐ Least H₂O: [ ] Cell [ ✓ ] Soln [ ] Equal
➡️ Net Flow: [ ] In [ ✓ ] Out [ ] None
Solution Tonicity:
[ ✓ ] Hypertonic [ ] Hypotonic [ ] Isotonic
Beaker 5 ★ EQUILIBRIUM ★
Beaker Solution EQUAL CONCENTRATION
Solute: 10% • Water: 90%
Dynamic Equilibrium ⇄