1 / 8

Understanding Osmosis and Diffusion: Experiments and Observations

This lab focuses on the concepts of osmosis and diffusion, exploring how particles move across membranes and the direction of flow. Through various experiments, including dialysis tubing and potato core observations, this lab aims to deepen understanding of solute concentration and the movement of particles.

ganey
Download Presentation

Understanding Osmosis and Diffusion: Experiments and Observations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AP Lab 1 Osmosis & Diffusion

  2. Objectives – for main concept • How does osmosis & diffusion work? • Do all particles cross the membrane? Do things flow from low to high or high to low? • Diffusion – movement of particles; osmosis – specifically water • Pg. 8 • Pg. 8 • Molarity is solute concentration – don’t do

  3. Exercise 1A • Using dialysis tubing – semi-permeable membrane • Placing glucose/starch solution in bag • Putting bag into distilled water – test for presence of starch and glucose

  4. 1A • New table – put Yes or no

  5. Exercise 1B – “animal cell” • More dialysis tubing • Pouring different sucrose concentrations in bag • Placing bags in distilled water • Mass of bags before and after

  6. Exercise 1C – “plant cell” • Taking potato cores and placing it in different sucrose solutions • Set up while bags are running • This runs overnight • Take mass before and after

  7. Exercise 1D • We’ll do together • Do not write up in pre-lab

  8. Exercise 1E • Observing plasmolysis under the microscope • Using red onion cells – add salt water and observe • Do while bags are running

More Related