Respiration and Elimination of Nitrogenous Wastes — Important Questions
Telangana Open School (TOSS) · Class 12 · Biology
48 important questions from Respiration and Elimination of Nitrogenous Wastes for Telangana Open School (TOSS) Class 12 Biology, with answers.
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Important Questions from Respiration and Elimination of Nitrogenous Wastes
What is the functional unit of the kidney?
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Nephron
The nephron is the structural and functional unit of the kidney responsible for filtering blood and forming urine.
Which part of the respiratory system is also known as the voice box?
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Larynx
The larynx contains vocal cords and is involved in sound production, hence called the voice box.
In which form do mammals primarily excrete nitrogenous waste?
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Urea
Mammals are ureotelic, meaning they convert toxic ammonia into less toxic urea in the liver for excretion.
What happens to the diaphragm during inspiration?
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It contracts and flattens
During inspiration, the diaphragm contracts, becomes flat, and lowers, increasing the volume of the thoracic cavity.
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