ICSE Class 9 Biology Important Questions

Biology, defined as the scientific study of life, is an incredibly broad and diverse field. In many ways, it’s as vivid and vibrant as living organisms themselves. The subject includes the study of cells, genes, inheritance, microorganisms, plants, animals, the human body, and the list goes on. The subject of Biology is very vast, and hence, ICSE Class 9 important questions play a vital role in helping the students score better marks.

The important question of Class 9 Biology provides students with additional questions to practice to test their knowledge. These important questions of Class 9 are designed by subject experts and cover all the important topics and concepts. Students are advised to solve these important questions to boost their confidence, and they can also self-evaluate their preparation level. Students are advised to practise the ICSE Class 9 Important Questions of Biology to ace in their final exam.

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Solving these important questions will make them perfect in Biology subject which will help them to attempt any kind of question asked in the exam. It is a beneficial resource as it covers the ICSE Class 9 Biology syllabus.

1. Define:
   1. Glycolysis
   2. Syncarpous gynoecium
   3. Active absorption
   4. Deplasmolysis
   5. Peristalsis
2. Give one example of each:
   1. A mammal which destroys stored grain
   2. A flightless bird
   3. The young one of a fish
   4. An antibiotic
   5. A water-borne disease
3. The given figure shows an experiment performed on germinating seeds.
   1. What does the experimental set-up demonstrate?
   2. Redraw the figure as it would have been observed at the start of the experiment.
   3. Write the chemical equation for the process.

   

4. Write the functions of
   1. Chromoplast
   2. Magnesium (human body)
   3. Stomach
   4. Male urethra
   5. Roughage
5. Write the full form of
   1. ANS
   2. PGA
   3. PEM
   4. WHO
   5. ERV
6. Define:
   1. Chlorenchyma
   2. Placentation
   3. Inspiratory reserve volume
   4. Flaccidity
   5. Osmoregulation
7. How is nitrogen fixation carried out?
8. Why is the vertebral column curved and not straight?
9. Mention any two reasons for the rapid increase of population in India.
10. Describe the hypersecretion of cortical hormones.
11. Write an experiment to prove that air, water and temperature are needed for the germination of seeds.
12. Describe the mechanism of a scrubber.
13. State three points of importance of minerals.
14. State three characteristics of annelids.
15. Draw the structure of the human alimentary canal.
16. The given figure shows fertilisation in flowers.
    
    1. Define the process.
    2. Label parts 1-4.
    3. Explain the mechanism of double fertilisation in the above flower.
17. The given figure shows a certain structure of a cell.
    
    1. Name the structure.
    2. Why is this structure important for the cell?
    3. Is this structure present in all cells? If not, mention the cell that lacks this structure.
18. The given figure shows a type of muscle.
    
    1. Identify the muscle.
    2. Label parts 1 and 2.
    3. Where is it located?
    4. What are the characteristics of this tissue?
19. State one example of carelessness in disposing of research and laboratory waste.
20. After garbage has been dumped in a landfill, how is the non-useful component of garbage dealt with?

Advantages of solving ICSE Class 9 Biology Important Questions

• It covers the entire syllabus, and by solving it, students will get to know the type of questions they can expect.
• It makes the learning process easier so that students don’t waste time preparing the important questions.
• Solving the ICSE important questions will make their concepts stronger so that they can score good marks.
• It helps the students revise the entire syllabus in a short duration of time.