4.1: Cell Transport Introduction

Instructions

Instructions:
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!

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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:

The overall, main function of a cell's plasma membrane is....

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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.

Link: Simulation #1 - Diffusion & Temperature

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

Choose the answer below that best describes the relationship between temperature and the movement of the particles in this simulation.

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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!
 
Once you have observed for at least 10 seconds, fill in blanks below as accurately as possible!

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 __________. 

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Now, you can close Simulation #1. You will now open the new link below in a second tab.

Link: Simulation #2 - Diffusion Across a Membrane

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
Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

When the simulation first begins to run, oxygen particles tend to __________ and carbon dioxide particles tend to __________. 

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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
Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

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 __________. 

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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. :(

To confirm you read this and understand, choose the option below that exactly matches one of the sentences written above.

Trim End | 07:21

Text | 00:08

Question 7 | 07:16

00:00/00:00

Text

00:08

Question 7

07:16

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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).

A. Draw a STAR on the side of the container that has a HIGH concentration of the orange solute particles.
B. Then, draw an ARROW on the image, showing which direction these solute particles would naturally diffuse, based on the concentration gradient that is present.

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In #8, you were asked about the movement of solute particles across a permeable membrane.

Assuming that the particles are small enough to diffuse across the membrane, which word below would best describe the type of transport happening in #8, as the particles move based on their starting concentration gradient?

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In passive transport, particles are moving from ____________.

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In active transport, particles are moving from __________.

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Active transport requires _________.

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Instructions:

4.1: Cell Transport Introduction

Instructions:

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:The overall, main function of a cell's plasma membrane is....

The overall, main function of a cell's plasma membrane is....

Link: Simulation #1 - Diffusion & Temperature

Choose the answer below that best describes the relationship between temperature and the movement of the particles in this simulation.

Once you have observed for at least 10 seconds, fill in blanks below as accurately as possible!

Link: Simulation #2 - Diffusion Across a Membrane

Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

To confirm you read this and understand, choose the option below that exactly matches one of the sentences written above.

A. Draw a STAR on the side of the container that has a HIGH concentration of the orange solute particles.

B. Then, draw an ARROW on the image, showing which direction these solute particles would naturally diffuse, based on the concentration gradient that is present.

Assuming that the particles are small enough to diffuse across the membrane, which word below would best describe the type of transport happening in #8, as the particles move based on their starting concentration gradient?

In passive transport, particles are moving from ____________.

In passive transport, particles are moving from ____________.

In active transport, particles are moving from __________.

In active transport, particles are moving from __________.

Active transport requires _________.

Active transport requires _________.

If particles are being moved AGAINST the concentration gradient, this would be an example of ___________.

If particles are being moved AGAINST the concentration gradient, this would be an example of ___________.

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:The overall, main function of a cell's plasma membrane is....

The overall, main function of a cell's plasma membrane is....

Link: Simulation #1 - Diffusion & Temperature

Choose the answer below that best describes the relationship between temperature and the movement of the particles in this simulation.

Once you have observed for at least 10 seconds, fill in blanks below as accurately as possible!

Link: Simulation #2 - Diffusion Across a Membrane

Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

Choose the answers below that best describes what you observe! If needed, you can reset the simulation and replay it!

To confirm you read this and understand, choose the option below that exactly matches one of the sentences written above.

A. Draw a STAR on the side of the container that has a HIGH concentration of the orange solute particles.

B. Then, draw an ARROW on the image, showing which direction these solute particles would naturally diffuse, based on the concentration gradient that is present.

Assuming that the particles are small enough to diffuse across the membrane, which word below would best describe the type of transport happening in #8, as the particles move based on their starting concentration gradient?

In passive transport, particles are moving from ____________.

In passive transport, particles are moving from ____________.

In active transport, particles are moving from __________.

In active transport, particles are moving from __________.

Active transport requires _________.

Active transport requires _________.

If particles are being moved AGAINST the concentration gradient, this would be an example of ___________.

If particles are being moved AGAINST the concentration gradient, this would be an example of ___________.