Practice Experimental Rationale & Controls - 6.1 | Exchange and Balance – Membranes & Transport | IB 8 Biology
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Experimental Rationale & Controls

6.1 - Experimental Rationale & Controls

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a negative control in an experiment.

💡 Hint: Think of it as the absence of change.

Question 2 Easy

What is the role of a positive control?

💡 Hint: It's like a standard benchmark.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a negative control used for in experiments?

To validate experimental conditions
To measure changes in the experiment
To provide a benchmark for results

💡 Hint: Think about what happens if nothing changes.

Question 2

True or False: A positive control can have an unknown outcome.

True
False

💡 Hint: Recall the purpose of a positive control.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Propose and justify a research exploration using dialysis tubing to assess the permeability of a new solute. What controls will you keep?

💡 Hint: Consider the importance of different solute concentrations.

Challenge 2 Hard

Devise a method to analyze the effects of temperature on solute permeability using dialysis tubing. Include potential controls.

💡 Hint: Think about how temperature changes might accelerate or slow down movement.

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