Embedded Files
Active transfer
Outcome
In this lesson you will explore examples of active transport in the cell. You will be able to compare and contrast active and passive transport.
Engage & Explain
Active transport requires the input of cellular energy, ATP, in order to transport substances across membrane. ATP (adenosine triphosphate) is produced by the mitochondria.
Learning Tasks
Explore
Explore
Brainstorming
In what parts of the body does active transport occur?
Come up with a list with the people on your table.
Elaborate
Elaborate
Active Transport
Write down the definition for active transport and include a diagram of the Sodium-Potassium pump. Explain why this is a good example of active transport
Use a Venn diagram to compare and contrast active and passive transport.
Science as a human endeavor (SHE) task
MUTATION IN SODIUM-POTASSIUM PUMP: NEWLY DISCOVERED SERIOUS DISEASE IN CHILDREN
Watch the video alongside to answer the questions:
Why is the sodium-potassium (SP) pump classified as a form of active transport?
What is one major function of the SP pump?
What is resting membrane potential?
What causes the shape change of the SP pump so sodium can be pumped into the extracellular space?
What ion is released into the intracellular space of the cell by the SP pump?
Why does sodium need to be 'actively transported' across the membrane? Refer to the concentration gradient
Why is it important to have a difference in concentration of sodium and potassium ions across the membrane?
Read this article and answer the following questions:
What kind of analysis was conducted on the children by the researchers?
Which two organs are referred to in the article as being reliant on the regular actions of the SP pump?
Describe some of the consequences of the SP pump genetic mutation.
Why does the article describe the SP pump as 'working like a battery'?
Summarise the importance of having the SP pump functioning normally in the body.
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