Class 9 Introduction to Biology Mock Test (ICSE)

Topics in Introduction to Biology

• Branches of biology
• Characteristics of living things
• Contributions of scientists
• Applications of biology

Introduction to Biology practice questions with answers

1. Q1Multiple choice·1 mark
   Which of the following applications of biology involves the commercial breeding of honeybees for honey and wax production?

   1. (a)Horticulture
   2. (b)Sericulture
   3. (c)Pisciculture
   4. (d)Apiculture
   Show answer and step marks

   1. Correct option: (d) Apiculture+1

   Answer: (d)
2. Q2Multiple choice·1 mark
   The permanent and irreversible increase in the size, weight, and volume of an organism is termed as:

   1. (a)Adaptation
   2. (b)Growth
   3. (c)Metabolism
   4. (d)Development
   Show answer and step marks

   1. Correct option: (b) Growth+1

   Answer: (b)
3. Q3Multiple choice·1 mark
   Who among the following scientists is credited with first observing and naming cells using a primitive microscope?

   1. (a)Louis Pasteur
   2. (b)Antonie van Leeuwenhoek
   3. (c)Matthias Schleiden
   4. (d)Robert Hooke
   Show answer and step marks

   1. Correct option: (d) Robert Hooke+1

   Answer: (d)
4. Q4Multiple choice·1 mark
   The branch of biology that deals specifically with the study of heredity and variations is called:

   1. (a)Genetics
   2. (b)Morphology
   3. (c)Ecology
   4. (d)Embryology
   Show answer and step marks

   1. Correct option: (a) Genetics+1

   Answer: (a)
5. Q5Long answer·4 marks
   Specialized branches of biology allow detailed study of various aspects of living organisms. (a) Name the specific branch of biology that deals with each of the following: (i) Study of fossils (ii) Study of fishes (b) State the scope of study for each of the following branches: (i) Entomology (ii) Cytology
   Show answer and step marks

   1. (a) (i) Palaeontology+0.5
   2. (a) (ii) Ichthyology+0.5
   3. (b) (i) Entomology: study of insects (their structure, life cycles, classification and relationship with humans and the environment).+1.5
   4. (b) (ii) Cytology: study of cells (their structure, composition, functions and division).+1.5

   Answer: (a) (i) Palaeontology, (ii) Ichthyology. (b) (i) Entomology: study of insects; (ii) Cytology: study of cells, their structure, functions and division.
6. Q6Long answer·4 marks
   Biology encompasses various branches to study the vast diversity of living organisms. (a) Name the two main branches of biology and briefly state the primary focus of each. [2] (b) Name the specialized branch of biology that deals with the study of: (i) Insects (ii) Birds [2]
   Show answer and step marks

   1. (a) First main branch: Botany.+0.5
   2. (a) Second main branch: Zoology.+0.5
   3. (a) Botany deals with the study of plants.+0.5
   4. (a) Zoology deals with the study of animals.+0.5
   5. (b) (i) Entomology+1
   6. (b) (ii) Ornithology+1

   Answer: (a) Botany (study of plants) and Zoology (study of animals); (b) (i) Entomology, (ii) Ornithology

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