Make sure you take detailed, helpful notes while completing this assignment! This is intended to introduce some of the important, basic concepts you need to know before arriving to class the day this is due!
Many of the topics, activities, and assignments in this unit will use the terms/concepts from this assignment, so it's important that you take your time to understand and take notes on this material!
We already learned about the cell membrane's structure and function. We will still need that knowledge in order to understand cell transport and communication for this unit! Answer the review question below based on what you already know:
Now, open the link below in a second tab. You will need to be able to switch back and forth between this Formative and the tab you have this simulation open in.
Throughout this assignment, you will need to open a few different online simulations! Make sure you keep track of which simulation(s) you have open, and which simulation a particular question is asking about.
You'll need this simulation for questions 2 - 3.
Once you open the link in a second tab:
click "Begin Activity"
review the key to understand what the circles in the simulation represent
drag the Temperature slider to the middle
click the Play button and observe what happens
observe what happens as you drag the Temperature slider up to the highest temperature and down to the lowest temperature
Now, on the same Simulation #1:
click the reset button at the bottom of the screen to reset the simulation (it looks like a back arrow!)
drag the Temperature slider back to the middle
click the Play button
choose a random spot in the simulation to click to add a "drop of red food dye" particles to the simulation
observe what happens for at least 10 seconds!
The particles in this simulation seem to typically be . The movement of the particles can best be described as . Over time, the red food dye particles in the container, eventually becoming . At this point, the red food dye particles .
Now, you can close Simulation #1. You will now open the new link below in a second tab.
You'll need this simulation for questions 4 - 5.
Once you open the link in a second tab:
click "Begin Activity"
review the simulation information, design, and key, make sure you understand which side of the membrane represents the inside of the cell versus the outside of the cell, as well as which color particle represents oxygen versus carbon dioxide
set the outside of the cell to: high oxygen, no carbon dioxide
set the inside of the cell to: no oxygen, high carbon dioxide
click the Play button and observe what happens for at least 10-15 seconds
When the simulation first begins to run, oxygen particles tend to and carbon dioxide particles tend to .
Now, on the same Simulation #2:
click the reset button at the bottom of the screen to reset the simulation (it looks like a back arrow!)
set the outside of the cell to: high oxygen, no carbon dioxide
set the inside of the cell to: no oxygen, no carbon dioxide
click the Play button and observe what happens for at least 10-15 seconds
Before you clicked play, the concentration of oxygen was inside the cell, as compared to the outside of the cell. Over time after clicking play, the concentration of oxygen inside the cell .
Once the concentration of oxygen was roughly the same both inside and outside of the cell, the oxygen , because .
Up next is a short video you'll need to watch and take notes on. In order to receive credit for watching the video, you MUST watch the video here on Formative. If you click to open the video in Youtube instead, then Formative will not be able to track your progress, you won't get credit, and you won't see all pop-up questions during the video. :(
Below is a container, with a permeable membrane down the middle. Each side of the membrane starts with a different concentration of solute particles (the circles).
In #8, you were asked about the movement of solute particles across a permeable membrane.