Chapter Exam

Chapter 2: Biological Classification — Online MCQ Test

Q: Who proposed the Five Kingdom Classification system?

Answer: B. R.H. Whittaker — R.H. Whittaker proposed the Five Kingdom Classification in 1969 based on cell structure, body organisation, mode of nutrition, and reproduction.

Q: Which kingdom includes organisms that are prokaryotic?

Answer: A. Monera — Monerans are prokaryotic organisms, meaning they lack a true nucleus and membrane-bound organelles.

Q: An organism is unicellular, eukaryotic and often motile. It is most likely placed in which kingdom?

Answer: B. Protista — Unicellular eukaryotic and often motile organisms are typically placed in Protista.

Q: Which statement best explains why viruses are not placed in Whittaker’s five kingdom classification?

Answer: B. They lack cellular organisation — Viruses are acellular and do not show cellular organisation, so they are not included in the five kingdom system.

Q: Why did Whittaker place cyanobacteria in Monera instead of Protista?

Answer: B. Because they are prokaryotic — Cyanobacteria are bacteria and therefore prokaryotic, which places them in Monera.

BIOLOGY · Grade 11 · CBSE(NCERT)

Practice Chapter 2: Biological Classification with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 11 BIOLOGY. This chapter covers: Five Kingdom Classification Monera Protista Fungi Plantae Animalia Prokaryotes Eukaryotes Classification Characteristics. AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Chapter 2: Biological Classification — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 11 BIOLOGY — Chapter 2: Biological Classification, with answers and explanations. These are sample questions; the exam has its own separate question set.

Who proposed the Five Kingdom Classification system?

A. Carl Woese
B. R.H. Whittaker ✓
C. Ernst Haeckel
D. Linnaeus

Answer: B. R.H. Whittaker
R.H. Whittaker proposed the Five Kingdom Classification in 1969 based on cell structure, body organisation, mode of nutrition, and reproduction.

Which kingdom includes organisms that are prokaryotic?

A. Monera ✓
B. Protista
C. Fungi
D. Plantae

Answer: A. Monera
Monerans are prokaryotic organisms, meaning they lack a true nucleus and membrane-bound organelles.

An organism is unicellular, eukaryotic and often motile. It is most likely placed in which kingdom?

A. Monera
B. Protista ✓
C. Plantae
D. Animalia

Answer: B. Protista
Unicellular eukaryotic and often motile organisms are typically placed in Protista.

Which statement best explains why viruses are not placed in Whittaker’s five kingdom classification?

A. They are prokaryotic
B. They lack cellular organisation ✓
C. They are multicellular
D. They have chitinous walls

Answer: B. They lack cellular organisation
Viruses are acellular and do not show cellular organisation, so they are not included in the five kingdom system.

Why did Whittaker place cyanobacteria in Monera instead of Protista?