Respiration — Practice Quiz
Telangana Board · Class 10 · Biology
4 MCQs on Respiration for Telangana Board Class 10 Biology: tap an answer to check it and see why. The full chapter test has 45 questions.
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What is the main function of alveoli in the lungs?
Which muscle is primarily responsible for breathing movements?
What is the correct pathway of air in the respiratory system?
The epiglottis prevents:
Sample Questions
Which of the following are products of aerobic respiration?
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Carbon dioxide, Water, Energy (ATP)
Aerobic respiration produces CO₂, H₂O, and ATP energy. Lactic acid and ethanol are products of anaerobic respiration.
In which organelle does cellular respiration mainly occur?
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Mitochondria
Mitochondria are called 'powerhouses of the cell' because cellular respiration occurs here, producing ATP energy.
Which of these statements about breathing are correct?
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Inspiration increases chest cavity volume, Diaphragm contracts during inhalation, Rib cage moves up during inspiration
During inspiration, diaphragm contracts, rib cage moves up and out, increasing chest volume. Normal expiration is passive.
What happens to lactic acid produced during vigorous exercise?
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It is removed when oxygen becomes available
Lactic acid causes muscle pain during exercise. When oxygen becomes available after rest, it is oxidized and removed from muscles.
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