Respiration is the process by which living organisms release energy from food. It involves taking in oxygen and releasing carbon dioxide. Gas exchange occurs in the lungs in humans and animals, and through stomata in plants. Breathing and respiration are related but different processes. Learning about respiration and gas exchange helps us understand how our body produces energy. This well-designed Respiration in organisms Grade 7 quiz tests your knowledge about the respiratory system, aerobic and anaerobic respiration, and the importance of oxygen for life. Take this quiz with 10 questions to check your understanding of respiration and gas exchange.
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