Respiration and Elimination of Nitrogenous Wastes
Telangana Open School (TOSS) · Class 12 · Biology
Most important questions from Respiration and Elimination of Nitrogenous Wastes for Telangana Open School (TOSS) Class 12 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.
Interactive on Super Tutor
Studying Respiration and Elimination of Nitrogenous Wastes? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
1,000+ Class 12 students started this chapter today
Sample Questions
What is the functional unit of the kidney?
Show answer
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?
Show answer
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?
Show answer
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?
Show answer
It contracts and flattens
During inspiration, the diaphragm contracts, becomes flat, and lowers, increasing the volume of the thoracic cavity.
+44 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Respiration and Elimination of Nitrogenous Wastes for Telangana Open School (TOSS) Class 12 Biology?
How to score full marks in Respiration and Elimination of Nitrogenous Wastes — Telangana Open School (TOSS) Class 12 Biology?
How many important questions are there in Respiration and Elimination of Nitrogenous Wastes?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Respiration and Elimination of Nitrogenous Wastes
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Respiration and Elimination of Nitrogenous Wastes chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Open School (TOSS) Class 12 Biology.