Excretory Products and their Elimination — Important Questions
CBSE · Class 11 · Biology
124 important questions from Excretory Products and their Elimination for CBSE Class 11 Biology, with answers. Part of the CBSE Class 11 Biology syllabus.
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Important Questions from Excretory Products and their Elimination
What is the average amount of urine an adult human excretes per day?
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1-1.5 liters
An adult human typically excretes 1 to 1.5 liters of urine per day.
Which part of the nephron is primarily responsible for reabsorption?
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Proximal Convoluted Tubule
The Proximal Convoluted Tubule (PCT) reabsorbs nearly all essential nutrients and 70-80% of electrolytes and water.
What is the process of urine release called?
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Micturition
Micturition is the neural mechanism and process of releasing urine from the urinary bladder.
Which organ helps eliminate CO2 from the body?
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Lungs
Lungs remove large amounts of CO2, approximately 200 mL per minute.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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