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Actual 2024 AQA A-LEVEL ACCOUNTING 7127/1 Paper 1 Question Paper & Mark Scheme
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Actual 2024 AQA A-LEVEL ACCOUNTING 7127/1 Paper 1 Question Paper & Mark Scheme
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Lab 4 Diffusion and Osmosis BIO201LStraighterline Anatomy & Physiology I BIO 201L Lab 4 Diffusion and Osmosis Worksheet – with
all lab photos (New Version June 2024) Scored 100%
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Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be
rejected. Pre-lab Questions
1. Define the following terms.
a. hypertonic solution:
hypertonic solution is a solution having more/higher solute concentration
than in another.
b. hypotonic solution:
A hypotonic solution has fewer solutes in it than another, which allows water
molecules to enter the cells by osmosis and may cause them to rupture or inflate.
c. isotonic solution:
An isotonic solution has the same amount of solute concentration as another.
When cells are placed in it, the solution does not move directly across the
semipermeable membrane.
2. Define osmotic pressure.
, Osmotic pressure is the force that equalizes the concentration of solvents on both
sides of the semipermeable membrane by causing solvent molecules to migrate from
a location of lower solute concentration to a location of higher solute concentration.
3. Explain what would happen to a cell placed in a hypertonic solution.
A cell submerged in a hypertonic solution would osmotically lose water to the solution,
thus shrinking or undergoing crenation due to the increased concentration of solutes
outside of the cell.
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