Unit 1 Chapter 2: Biological Classification — Online MCQ Test
BOTANY · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board
Practice Unit 1 Chapter 2: Biological Classification with a free chapter-wise online MCQ test.
This chapter covers: This chapter covers kingdom classifications including Monera Protista Fungi Plantae Animalia six-kingdom systems and non-cellular entities like viruses viroids prions and lichens..
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Unit 1 Chapter 2: Biological Classification — Important Questions & Answers
Who introduced the five-kingdom classification system?
- A. R.H. Whittaker
- B. Carl Linnaeus
- C. E.J. Smith
- D. Theodor Schwann
Answer: A. R.H. Whittaker
R.H. Whittaker proposed the five-kingdom system in 1969 based on cell structure, body organization, mode of nutrition, and reproduction.
R.H. Whittaker proposed the five-kingdom system in 1969 based on cell structure, body organization, mode of nutrition, and reproduction.
Which of the following is a non-cellular entity?
- A. Bacteria
- B. Virus
- C. Amoeba
- D. Yeast
Answer: B. Virus
Viruses are acellular and lack cellular organization. They can replicate only inside a living host cell.
Viruses are acellular and lack cellular organization. They can replicate only inside a living host cell.
Which one of the following organisms is eukaryotic and unicellular?
- A. Bacillus
- B. Euglena
- C. Nostoc
- D. Penicillium
Answer: B. Euglena
Euglena is a unicellular eukaryote and is placed in Protista. Bacillus and Nostoc are prokaryotes, while Penicillium is multicellular.
Euglena is a unicellular eukaryote and is placed in Protista. Bacillus and Nostoc are prokaryotes, while Penicillium is multicellular.
An organism shows prokaryotic organization, absence of a true nucleus, and a cell wall made of peptidoglycan. It belongs to:
- A. Protista
- B. Monera
- C. Fungi
- D. Plantae
Answer: B. Monera
Peptidoglycan-containing cell walls and absence of a true nucleus are characteristic features of Monera.
Peptidoglycan-containing cell walls and absence of a true nucleus are characteristic features of Monera.
A plant virus, a viroid, and a prion are compared. Which of the following correctly arranges them in increasing order of structural complexity?
- A. Prion < Viroid < Virus
- B. Viroid < Prion < Virus
- C. Virus < Viroid < Prion
- D. Prion < Virus < Viroid
Answer: A. Prion < Viroid < Virus
Prions are only proteinaceous, viroids are naked RNA molecules, and viruses have nucleic acid enclosed in a protein coat, making them more complex.
Prions are only proteinaceous, viroids are naked RNA molecules, and viruses have nucleic acid enclosed in a protein coat, making them more complex.