NCERT Solutions for Class 9 Science Chapter 5 The Fundamental Unit of Life

 

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NCERT Solutions for Class 9 Science Chapter 5 - The Fundamental Unit of LifeWhile examining a thin slice of cork, Robert Hooke saw that the cork resembled the structure of a honeycomb consisting of many little compartments. Cork is a substance which comes from the bark of a tree. This was in the year 1665 when Hooke made this chance observation through a self-designed microscope. Robert Hooke called these boxes cells. The cell is a Latin word for ‘a little room’. This may seem to be a very small and insignificant incident but it is very important in the history of science. This was the very first time that someone had observed that living things appear to consist of separate units. The use of the word ‘cell’ to describe these units is being used to this day in biology. In NCERT Solutions for Class 9 Science Chapter 5, you will also get to know that why the cell is called a structural and functional unit of life.

Here are the important Topics of NCERT Solutions for Class 9 Science Chapter 5 - The Fundamental Unit of Life mentioned below:

5.1 What Are Living Organisms Made up of?

5.2 What Is a Cell Made up Of? What Is the Structural Organisation of a Cell?

    5.2.1 Plasma Membrane or Cell Membrane

    5.2.2 Cell Wall

    5.2.3 Nucleus

    5.2.4 Cytoplasm

    5.2.5 Cell Organelles

        5.2.5 (i) Endoplasmic Reticulum (ER)

        5.2.5 (ii) Golgi Apparatus

        5.2.5 (iii) Lysosomes

        5.2.5 (iv) Mitochondria

        5.2.5 (v) Plastids

        5.2.5 (vi) Vacuoles

In Class 9 Science Chapter 5 - The Fundamental Unit of Life, you will also study that most mature plant cells have a large central vacuole that helps to maintain the turgidity of the cell and stores important substances including wastes. Prokaryotic cells have no membrane-bound organelles, their chromosomes are composed of only nucleic acid, and they have only very small ribosomes as organelles. Cells in organisms divide for growth of body, for replacing dead cells, and for forming gametes for reproduction.

After going through this chapter, you must be able to get the NCERT Solution of these questions which are mentioned below, as these questions are from NCERT.

Q1. What would happen if the plasma membrane ruptures or breaks down? 

Q2. What would happen to the life of a cell if there was no Golgi apparatus? 

Q3. Which organelle is known as the powerhouse of the cell? Why? 

Q4. Where do the lipids and proteins constituting the cell membrane get synthesized?

If you have any problem in answering these questions or you are not getting the correct answers then don't worry, NCERT Solutions for Class 9 Science Chapter 5 - The Fundamental Unit of Life is there for you to help. Solutions for NCERT Class 9 Science Chapter 5 - The Fundamental Unit of Life will give you answers to all the questions which are mentioned in the NCERT book.

First of all, try to answer all the questions by yourself. Then, if you need any help, NCERT Solutions for Class 9 Science Chapter 5 - The Fundamental Unit of Life will suggest you the best answer written by our experts.

NCERT Class 9 Science Chapter 5 The Fundamental Unit of Life - Solutions

 

NCERT Solutions for Class 9 Science- Chapter Wise

Chapter No.

Chapter Name

Chapter 1

Matter in Our Surroundings

Chapter 2

Is Matter Around Us Pure

Chapter 3

Atoms and Molecules

Chapter 4

Structure of The Atom

Chapter 6

Tissues

Chapter 7

Diversity in Living Organisms

Chapter 8

Motion

Chapter 9

Force and Laws of Motion

Chapter 10

Gravitation

Chapter 11

Work and Energy

Chapter 12

Sound

Chapter 13

Why Do We Fall ill?

Chapter 14

Natural Resources

Chapter 15

Improvement in Food Resources

 

NCERT Solutions for Class 9 - Subject Wise

NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 9 Science
 

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