Lesson 4
Dialysis Bag Practice Practical
Learning Intention/Whāinga: Complete the dialysis experiment to explore osmosis.
Paearu Angitu/Success Critera
2. I can compare the different types of cellular transport.
I can carry out the planning section of the scientific method (items #4-8).
Learning Task/Mahi Ako
Part 1
Watch the 'Setting Up a Dialysis Tube" video.
Watch the section of the lesson recording (part 1) for "Experimental Instructions and Assessment Guidelines."
In pairs set up your dialysis experiment and complete slides 6, 7, and 10 for the "Diffusion and Osmosis Practice Practical."
Watch the "Osmosis" video.
Watch the section of the lesson recording for "Osmosis Notes."
Note, if you were absent for this lesson, please work on the Mahi Choice instead.
Part 2
Watch the section of the lesson recording (part 2) for "Experimental Instructions."
In pairs, Collect your data from your dialysis experiment and process that data onto the 2BIOL Dialysis Practical - Diffusion GLK Google Sheet.
Share your data onto the GLK Class % change in mass Google Sheet.
Note, if you were absent for this lesson, please collect the data from your partner.
Part 3
If you were absent, watch the "Planning Clarifications" and "Results" sections of 4b. Internal Clarification video recording of the lesson.
Complete the planning and results on the Google Slides.
If you were absent, watch the "Discussion Clarifications" in the same video.
Complete the conclusion. If you're aiming for merit, make sure to write a discussion. If you're aiming for excellence, write the discussion and evaluation.
The recording for this lesson (part 1).
PowerPoint Used in Class
The recording for this lesson (part 2).
Scan of written board notes.
Mahi Choice
Start at the level you feel comfortable with and then keep levelling up!
If you’re looking for “homework” or evidence in case we need a UEG, these are perfect tasks to do.
Remember, you’re not expected to do all these tasks. These are just recommendations to give you ideas on how to support your learning.
Level 1
SciPad
An Introduction to Cell Transport Processes (page 41)
Concentration Gradient (page 43)
Osmosis (page 45)
Level 2
SciPad
Tonicity (page 46)
Tonicity and Cells (page 47)
Level 3
ESA
Read and answer the questions for Chapter 4: Cell Processes: Movement of Materials