Tania - worksheet 1 key x - Tania Nag Email [email protected]

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Tania Nag Email: [email protected] Section: Monday 2-2:50PM, WLH 2112 OH: Monday 3-3:50 PM, PC Theater Lobby BIPN 100: PROBLEM SET WEEK 1 Diffusion, Osmosis, Tonicity 1. What is the driving force for diffusion? The concentration gradient 2. When predicting the flow of water across a membrane, which two characteristics should be considered? Tonicity and membrane permeability Notes : Isoosmotic: Two solutions with the same osmolarity, creating an equal osmotic pressure. Hyperosmotic: A solution having a greater osmolarity and osmotic pressure than the solution it is being compared to. Hypoosmotic: A solution having a lower osmolarity and osmotic pressure than the solution it is being compared to. Fill in the blanks with either isosmotic, hyperosmotic, or hypoosmotic A 2 mM glucose solution is __ isoosmotic ____ to a 1 mM NaCl solution A 2 mM glucose solution is ___ isoosmotic _______ to a 2 mM Urea solution A 2 mM glucose solution is __ hyperosmotic ____ to a 0.5 mM NaCl solution A 2 mM glucose solution is ___ hypoosmotic _____ to a 2 mM NaCl solution
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