Biology I (Eng) For Class IX (Science) - Comprehensive Papers 2025 with solved MCQs - By Practical Center

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Class IX (Science)
Biology I
Comprehensive Paper 2025

By Practical Center
For MCQS Answer Click Here

MCQs Answers

i) Study of remote past organic life, with the help of fossils:______.
* Entomology
* Paleontology
* Taxonomy
* Histology

ii) The study of distribution of living organisms in different regions of the world is called:
* Biotechnolgy
* Biogeography
* Cytology
* Genetics

iii) Equation stating that two ratios are equal
* Ratio
* Proportion
* Guess
* Senses

iv) The groups classified organisms are called:
* Taxa
* System
* Organism
* Biological orders

v) The cutting down of trees are called:
* Forestation
* Deforestation
* Conservation
* Extinction

vi) This thin wall on thr outer side of cell, separates one cell from another is:
* Primary wall
* Secondary wall
* Middle lamella
* Cell membrane

vii) The enlargement of an image is called ______.
* Resolution
* Magnification
* Observation
* Determination

viii) The sequence of changes occurs between one cell division and the next:
* Cell formation
* Cell cycle
* Nucleosome
* Cell elongation

ix) The pouch like structure at the beginning of large intestine:
* Pancreas
* Caecum
* Colon
* Kidney

x) When excess body fats accumulated in the body the condition is called:
* Obesity
* Starvation
* Anemia
* Goiter

xi) Water and minerals enter the plants through the:
* Roots
* Stem
* Leaves
* Branches

xii) The fast heart rate, more than 100 per minute condition, is called:
* Bardycardia
* Tachycardia
* Osteocardia
* Eradicardia

Chapters For Short Question Answers

• Q.2 = Chapter 4
• Q.3 = Chapter 3
• Q.4 = Chapter 1 (Definitions) , Chapter 2 (other 2 questions)
• Q.5 = Chapter 5
• Q.6 = Chapter 4
• Q.7 = Chapter 4 (Golgi bodies, Nucleus, Endoplasmic Reticulum),
  * Chapter 8 (Eutrophication -Pg No. 145, Appendix - Pg No. 166)
  
• Q.8 = Chapter 8 (Villus of human being - Pg No. 165),
  *  Chapter 5 (Cell Cycle- Pg No. 92, Number of chromosome remain constant generation to generation i.e. meiosis - Pg no. 99)
  * Chapter 4 (Mitochondria - Pg no. 70)
• Q.9 = Chapter 8 & Chapter 4
• Q.10 = Chapter 4 & Chapter 8
  
• Q.11 = Chapter 8
  * Difference - Chapter 9
• Q.12 = Chapter 9 & Chapter 3 (Deforestation)
• Q.13 = Chapter 4 & Chapter 8 (Fertilizer)

 

Chapters For Descriptive Question Answers

• Q.14 = Chapter 9
• Q.15 = Chapter 5
• Q.16 = Chapter 8 & Chapter 4 (Difference)
• Q.17 = Chapter 9 (Human Heart) , Chapter 8
• Q.18 = Chapter 4
• Q.19 = Chapter 4 (include diagram of bacteria cell), Chapter 3 (diagram of paramecium cell)

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