Biological Classification Test 5 – MCQs with Answers and Explanation

Biological classification is a key chapter in Class 11 Biology that explains the diversity of life forms and their grouping. It is highly important for board exams and competitive exams like NEET. This test includes important MCQs based on fungi, viruses, Monera, and Protista. Solving these questions will help you strengthen your concepts and improve your exam performance.

The first question asks for an incorrect statement about fungi. The correct answer is that their cell wall is made of cellulose, which is wrong because fungal cell walls are made of chitin. The second and third questions focus on viral reproduction. The correct answer is that viruses use host cell machinery for replication, as they cannot reproduce independently.

The fourth question asks about a correct statement regarding Kingdom Monera. The correct answer is that monerans have a circular DNA molecule. They are prokaryotic and lack membrane-bound organelles. The fifth question is about cyanobacteria. The correct answer is that they perform nitrogen fixation, which is an important ecological function.

The sixth question highlights a characteristic feature of Kingdom Protista. The correct answer is the presence of a well-defined nucleus, as protists are eukaryotic organisms. The seventh question asks for a flagellated protozoan, and the correct answer is Trypanosoma, which moves using a flagellum.

The eighth question asks for a statement that is not a characteristic of viruses. The correct answer is that they can reproduce outside a host, which is incorrect because viruses are obligate intracellular parasites. The ninth question focuses on an organism considered a link between plants and animals. The correct answer is Euglena, as it shows both autotrophic and heterotrophic modes of nutrition.

The tenth question asks about the mode of nutrition in fungi. The correct answer is saprophytic and heterotrophic, as fungi obtain nutrients from dead and decaying organic matter or by parasitism.

Overall, this test covers important concepts frequently asked in exams. Regular practice of such MCQs will help you build strong fundamentals and improve accuracy. It is always recommended to revise NCERT thoroughly and solve multiple questions for better preparation and confidence.