Olympiad Class-7 Science Set-5
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Which of the following is the primary organ of the respiratory system in humans?
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Which of the following organisms can perform both aerobic and anaerobic respiration?
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In humans, exchange of gases takes place in:
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In anaerobic respiration in muscles, glucose is converted to:
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Which of the following is a by-product of aerobic respiration?
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The process of breaking down glucose to release energy is called:
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The flap that covers the trachea during swallowing is called:
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What is the end product of anaerobic respiration in muscles?
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In which part of the plant does respiration mainly occur?
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During inhalation, the diaphragm:
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The respiratory system starts from the:
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In the absence of oxygen, yeast cells convert glucose into:
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Which gas is taken in during inhalation?
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The process of inhaling and exhaling is called:
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Anaerobic respiration occurs in the absence of:
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Which part of the respiratory system is also known as the windpipe?
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The exchange of gases in the alveoli occurs by:
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What type of change is cutting a log of wood into pieces?
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The muscle that plays a crucial role in breathing is the:
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What happens when carbon dioxide is passed through lime water?
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Respiration in plants occurs through:
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What is the main function of the respiratory system?
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The tiny air sacs in the lungs where the exchange of gases takes place are called:
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The respiratory pigment in humans that transports oxygen is:
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Which gas is produced during respiration?
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