Class 12 Biology Imp Qn’s

Botany

Important Questions of Botany is given as:

Unit 1: Plant Anatomy

Contains 5 Marks (1 short & 1 MCQ)

Important Questions of Pant Anatomy is given as:

  • Xylem and Phloem (difference)
  • Anatomy of dicot system (most imp.)
  • Focus on figures (question might be asked from fig.)

Unit 2: Plant physiology

Contains 11 Marks (2 short or 1 long & 3 MCQS)

Important Questions of Plant physiology is given as:
  • Mechanism of photosynthesis (Photochemical phase most imp.)
  • Mechanism of respiration – Most imp. (glycolysis and Krebs cycle)
  • Plant hormones (auxin, gibberellins and cytokinin’s)

Unit 3: Genetics

Contains 12 Marks (1 short & 1 long)

Important Questions of Genetics is given as:
  • DNA replication
  • Structure of DNA
  • Coloured blindness in man and eye colour of Drosophila (One is fixed)
  • Mutation (Gene & Chromosomal mutation)

Unit 4: Embryology

Contains 5 Marks (1 short & 1 MCQ)

Important Questions of Embryology is given as:

  • Development of monocot and dicot embryos
  • Vegetative Propagation and it’s advantages
  • Differences between: Self and cross pollination

Unit 5: Biotechnology

Contains 4 Marks (1 short)

Important Questions of Biotechnology is given as:

  • Green manure and bio fertilizers
  • plant tissue culture
  • food security (Challenges and control measures)
  • Scopes of biomedical engineering in Nepal

Zoology

Unit 1: Human Biology

Contains 16 Marks (1 short & 1 long & 4 MCQS)

Topics:

  • Digestive System
    – Alimentary canal parts(fig. related question)
    – Digestive glands(read briefly)
    – Physiology of digestion (important)
  • Circulatory System
    – Origin and conduction of heart beat
    – arterial and venous system
  • Excretory System
    – Excretory organs(structure of nephron with figure)
    – Urine formation(both are imp.)
  • Nervous System
    – Read Briefly Structure and functions of brain
    – If you have notes of class 10 read it.
  • Sense Organ
    – working of human ear (important)
    – internal structure (briefly)

Unit 2: Human population

Contains 4 Marks (1 short)

Important Questions of Human population is given as:

  • Differences between J- shaped curve and S- shaped curve
  •  Curve measures
  • Reason giving/ Justify it/related questions

Unit 3: Application of Zoology

Contains 9 Marks (2 short or 1 long & 1 MCQ)

Important Questions of Application of Zoology is given as:

  • IVF(Process/stages)
  • Amniocentesis (process)
  • Fish farming (Types of pond, Breeding technique)
  • Fish farming in Nepal
  • Typss of organ transplantation
  • Focus on Tuberculosis, typhoid, Hepatitis (Causative agents, mode of transmission, diagnosis, symptoms and preventive measures)

Unit 4: Animal Tissue

Contains 5 Marks (1 short & 1 MCQ)

Important Questions of Animal Tissue is given as:

  •  epithelial tissue (imp.)
  • Differences between adipose and areolar tissue

Unit 5: Developmental Biology

Contains 5 Marks (1 short & 1 MCQ)

Important Questions of Developmental Biology is given as:

  • Focus on Gametogenesis, blastulation, gastrulation
  • See All the differences between:
    – Axon and dendrites
    – Voluntary and involuntary muscles
    – Cartilage and Bone

 

The topics listed above are Important Questions for the NEB exam in physics. We also took some references to prepare for this content.

 

All the best for your exams.

 

Notes Credit: Notes Library

For Model Questions Click Here.

Play Quiz