The cell is the smallest unit of life and is known as the basic building block of all living organisms. Every living thing, from simple microorganisms to complex plants and animals, is made up of cells. Cells perform essential life functions such as growth, metabolism, reproduction, and response to the environment.
In Class 9 Biology Chapter 3 – The Cell, students learn about the structure and functions of cells and how different parts inside a cell work together to keep the organism alive. Understanding the cell is very important because it explains how life processes occur at the most basic level.
📥 Download Chapter 3 Notes – The Cell
Skip to PDF contentThese notes include important MCQs, short questions, long questions, and key concepts from Chapter 3. The PDF helps students revise important topics quickly and prepare effectively for board exams.
Students can download the PDF to study offline and improve their understanding of the chapter.
Key Topics Covered
-
Cell
-
Structure of Cell
-
Structural Advantages of Plant and Animal Cells
-
Cell Specialization
-
Stem Cells
These topics cover the complete syllabus of Chapter 3 according to the Punjab Board, making the notes helpful for both concept learning and exam preparation.
Class 9 Biology Chapter 3 MCQs – The Cell
1. Which branch of Biology focuses on the study of the structure and function of cells?
(a) Cytology ✅
(b) Ecology
(c) Histology
(d) Anatomy
2. Ribosomes are composed of:
(a) RNA and protein ✅
(b) DNA and protein
(c) Carbohydrates and lipids
(d) RNA and carbohydrates
3. Who discovered the cell using a simple microscope in 1665?
(a) Robert Brown
(b) Robert Hooke ✅
(c) Anton van Leeuwenhoek
(d) Schleiden
4. What is the main function of ribosomes?
(a) Energy production
(b) Photosynthesis
(c) Protein synthesis ✅
(d) Lipid metabolism
5. Which animal cells are responsible for movement and contraction?
(a) Neurons
(b) Liver cells
(c) Muscle cells ✅
(d) Red Blood Cells (RBC)
6. What is the primary function of ribosomes?
(a) Energy production
(b) Protein synthesis ✅
(c) Lipid synthesis
(d) DNA synthesis
7. Which of the following cell structures is involved in maintaining cell shape?
(a) Cytoskeleton ✅
(b) Centrioles
(c) Nucleus
(d) Lysosome