Practice Phytochromes (9.4.3.2) - Plant Biology - IB 12 Biology
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Phytochromes

Practice - Phytochromes

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the function of phytochromes in plants?

💡 Hint: Think about how light affects plant behavior.

Question 2 Easy

Define photoperiodism.

💡 Hint: Focus on how plants react to light and dark cycles.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What do phytochromes primarily regulate in plants?

Photosynthesis
Flowering time
Root growth

💡 Hint: Consider what part of the plant's life cycle is affected by light.

Question 2

Do phytochromes exist in two forms (Pr and Pfr)?

True
False

💡 Hint: Recall the light absorption characteristics of both forms.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

How might changing climate patterns affect the function of phytochromes in plants?

💡 Hint: Consider how inconsistent seasons can affect flowering times.

Challenge 2 Hard

Design an experiment to study how different wavelengths of light affect phytochrome activity.

💡 Hint: Think about how to isolate the variable—light—and measure the outcomes.

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Reference links

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