NCERT Class 11 Biology Chapter 16 Excretory Products and their Elimination Test Mock Test
This free online test covers Chapter 16, Excretory Products and their Elimination, from the NCERT Class 11 Biology textbook. The 34 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.
Duration
34 mins
Questions
34 MCQs
Total Marks
34 pts
Negative
0 per wrong
Topics Covered in This Paper
Sample Questions
Q1.Among the three major nitrogenous wastes, ammonia and uric acid stand at the two extremes because:
- AAmmonia is the most toxic but needs the least water for elimination of the three
- BAmmonia is the most toxic and needs a large amount of water for elimination, while uric acid is the least toxic and can be removed with minimum loss of water
- CUric acid is the most toxic and needs a large amount of water, while ammonia is the least toxic
- DBoth are equally toxic, differing only in the organ that removes them
Q2.Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic, and in them ammonia is generally excreted:
- ABy diffusion across body surfaces or through gill surfaces as ammonium ions, the kidneys playing no significant role
- BEntirely by the kidneys after conversion in the liver
- CAs a pellet or paste with very little water
- DThrough Malpighian tubules opening into the gut
Q3.Which group of animals is described as excreting nitrogenous wastes mainly as urea?
- AFlatworms, rotifers and Amphioxus
- BReptiles, birds, land snails and insects
- CMammals, many terrestrial amphibians and marine fishes
- DMany bony fishes, aquatic amphibians and aquatic insects
Before you begin
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Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.
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FAQ
Frequently asked questions
Frequently Asked Questions
- How many questions are in the NCERT Class 11 Biology Chapter 16 Excretory Products and their Elimination Test mock test?
- This paper has 34 multiple-choice questions carrying 34 marks in total, to be attempted in 34 minutes.
- Is the NCERT Class 11 Biology Chapter 16 Excretory Products and their Elimination Test mock test free to attempt?
- Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
- Does this paper have negative marking?
- No, there is no negative marking on this paper, so an attempted guess costs you nothing.
- Are solutions and explanations available?
- Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.