Practice Introduction - 14.1 | 14. Respiratory System | ICSE Class 9 Biology
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the main function of the respiratory system?

💡 Hint: Think about what we breathe in and out.

Question 2

Easy

Name one gas we take in and one gas we breathe out.

💡 Hint: Consider what we use oxygen for.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What gases are exchanged in the respiratory system?

  • Oxygen and nitrogen
  • Oxygen and carbon dioxide
  • Carbon dioxide and methane

💡 Hint: Think about what we need to survive.

Question 2

True or False: The respiratory system is only responsible for inhalation.

  • True
  • False

💡 Hint: Consider both processes involved in breathing.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a simple experiment to show how breathing rate changes during physical activity versus rest. What do you expect to measure?

💡 Hint: Think about how physical activity influences oxygen needs.

Question 2

Discuss how pollution can impact the respiratory system's function. What long-term effects might this have?

💡 Hint: Consider how air quality affects health.

Challenge and get performance evaluation