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8.3 Part 2 - Active Transport

Last updated about 5 years ago

5 questions

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Question 1

1.

If the cell needs to move potassium ions against their concentration difference (from low concentration to high concentration) what needs to be present in the membrane? Would this require energy?

Question 2

2.

What specific type of bulk transport is the gif above showing? Is this active or passive transport?

Question 3

3.

What type of bulk transport is shown in the gif above? What is this type of transport used for in the cell? (You might need to refresh the page to watch it again)

Question 4

4.

Paramecium are unicellular eukaryotes found in freshwater ponds. Paramecium have a specialized cell part known as a contractile vacuole that pumps out excess water from them. Using your knowledge of osmosis, explain why this specialized contractile vacuole is important for the Paramecium to maintain homeostasis.

You can also watch the gif above.

Question 5

5.

Do you think the activity of the contractile vacuole of the Paramecium would be an example of passive transport or active transport (or both)? Explain.