Model Test Question for Biology, Class 9-10, English Version.

Here is a Model Test Question for Biology, Class 9-10, English Version.

Model Test – Biology

Class: 9-10

Section A: Multiple Choice Questions (MCQ)

(Answer all questions. Each carries 1 mark.)

1. Which of the following is the basic unit of life?
   a) Tissue
   b) Cell
   c) Organ
   d) Organ system
2. The process by which green plants prepare their food is called—
   a) Respiration
   b) Photosynthesis
   c) Transpiration
   d) Digestion
3. Which organelle is known as the ‘powerhouse of the cell’?
   a) Chloroplast
   b) Ribosome
   c) Mitochondrion
   d) Golgi body
4. Which group of organisms has no true nucleus?
   a) Protista
   b) Animalia
   c) Monera
   d) Fungi
5. Which tissue transports water in plants?
   a) Xylem
   b) Phloem
   c) Sclerenchyma
   d) Parenchyma

Section B: Short Questions (SAQ)

(Answer any five questions. Each carries 4 marks.)

6. Define cell. Write any two differences between plant cell and animal cell.
7. What is tissue? Explain the function of epithelial tissue.
8. What is osmosis? Explain with an example.
9. Describe the role of stomata in plants.
10. Write four functions of blood in the human body.
11. What is chlorophyll? Why is it essential for photosynthesis?
12. Describe the structure and function of mitochondria.

Section C: Creative Questions (CQ)

(Answer any two questions. Each carries 10 marks.)

Question 13:
The figure below shows a cross-section of a leaf.

a) Name parts A and B.
b) Explain the function of chloroplast in photosynthesis.
c) Discuss the importance of stomatal control in transpiration.
d) How does the leaf structure help in efficient food production?

Question 14:
Arif placed a potato slice in pure water and another slice in strong salt solution.
After some time, the slice in pure water became swollen, while the one in salt solution became shrunken.

a) Identify the process shown in both cases.
b) Explain the difference between the two observations.
c) What is the importance of this process in plant cells?
d) Describe how farmers use this principle while watering crops.

Question 15:
Humans have different organ systems for various functions.

a) Name any four human organ systems.
b) Describe the structure and function of the circulatory system.
c) Explain how the circulatory system works with the respiratory system to keep the body alive.