Introduction — NEET Biology Questions

Practice 20 questions on Introduction from Plant kingdom (NCERT Class 11, Chapter 3). Free samples below — get all 20 in the app.

20 Questions Plant kingdom Class 11

Sample Questions — Introduction

Try 5 questions below from Introduction. Get all 20 in the MedicNEET app.

MCQ
Why do modern systems no longer classify cyanobacteria under algae in Plantae?
  • A. Cyanobacteria belong to Monera, not Plantae
  • B. Cyanobacteria are not aquatic
  • C. Cyanobacteria lack chlorophyll
  • D. Cyanobacteria reproduce sexually
✅ Correct Answer: A
Cyanobacteria are now placed in Monera due to prokaryotic features.
MCQ
Which of the following characteristics were used in artificial systems of classification?
  • A. External morphology and vegetative characters
  • B. Fossil structure and chromosome number
  • C. Embryology and phytochemistry
  • D. Evolutionary lineage and anatomy
✅ Correct Answer: A
Artificial systems relied on external traits like habit, shape, and androecium structure.
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MCQ
Why is equal weightage to vegetative and sexual traits not accepted in modern classification?
  • A. Vegetative traits are genetically dominant
  • B. Sexual traits are environment-dependent
  • C. Both types of traits are equally unreliable
  • D. Vegetative characters vary more with environment
✅ Correct Answer: D
Because vegetative traits are easily influenced by environmental factors, relying on them causes classification errors.
MCQ
Why is cytotaxonomy useful in resolving classification issues?
  • A. It is faster than traditional systems
  • B. It uses advanced AI for prediction
  • C. It studies chromosome number and behavior
  • D. It avoids using morphology completely
✅ Correct Answer: C
Cytotaxonomy uses cytological information like chromosome number, structure, behavior and hence are more accurate when resolving classification issues .
MCQ
Why does numerical taxonomy allow more objective classification than traditional methods?
  • A. It uses evolutionary lineage exclusively
  • B. It gives priority to sexual traits
  • C. It ignores all morphological traits and focuses only on molecular data
  • D. It assigns numbers to all observable traits for equal analysis
✅ Correct Answer: D
Numerical taxonomy avoids bias by converting observations into coded data for computer analysis.

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