Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

NCERT Books for Class 9 Science Chapter 5

ffImage
Last updated date: 19th May 2024
Total views: 671.4k
Views today: 14.71k

The Fundamental Unit of Life - Free PDF Download

Free NCERT Books download for Class 9 Science Chapter 5 - The Fundamental Unit of Life is available on Vedantu. Students can also download the NCERT Textbooks Solutions in PDF for Class 9 Science Chapter 5 - The Fundamental Unit of Life. Register for Science tuition to clear your doubts and score more in your exams.


Question: How to download Class 9 Science Chapter 5 NCERT Book for CBSE?

Answer: Students can download it from epathshala.nic.in. On this page, Students can download Class 9 Science Chapter-5 PDF Solutions of the Book. 


Vedantu is a platform that provides free NCERT Solutions and other study materials for students. Math Students who are looking for better solutions, can download Class 9 Math NCERT Solutions to help you to revise the complete syllabus and score more marks in your examinations.

Popular Vedantu Learning Centres Near You
centre-image
Mithanpura, Muzaffarpur
location-imgVedantu Learning Centre, 2nd Floor, Ugra Tara Complex, Club Rd, opposite Grand Mall, Mahammadpur Kazi, Mithanpura, Muzaffarpur, Bihar 842002
Visit Centre
centre-image
Anna Nagar, Chennai
location-imgVedantu Learning Centre, Plot No. Y - 217, Plot No 4617, 2nd Ave, Y Block, Anna Nagar, Chennai, Tamil Nadu 600040
Visit Centre
centre-image
Velachery, Chennai
location-imgVedantu Learning Centre, 3rd Floor, ASV Crown Plaza, No.391, Velachery - Tambaram Main Rd, Velachery, Chennai, Tamil Nadu 600042
Visit Centre
centre-image
Tambaram, Chennai
location-imgShree Gugans School CBSE, 54/5, School road, Selaiyur, Tambaram, Chennai, Tamil Nadu 600073
Visit Centre
centre-image
Avadi, Chennai
location-imgVedantu Learning Centre, Ayyappa Enterprises - No: 308 / A CTH Road Avadi, Chennai - 600054
Visit Centre
centre-image
Deeksha Vidyanagar, Bangalore
location-imgSri Venkateshwara Pre-University College, NH 7, Vidyanagar, Bengaluru International Airport Road, Bengaluru, Karnataka 562157
Visit Centre
View More
Watch videos on
NCERT Books for Class 9 Science Chapter 5
icon
The Fundamental Unit of Life L-1 | Cell: Introduction and Cell Organelles 🧫 | CBSE 9 Biology - Umang
Vedantu 9&10
Subscribe
iconShare
11.2K likes
209.7K Views
3 years ago
Play Quiz
Download Notes
yt video
The Fundamental Unit of Life | Cell Theory and Types of Cells| CBSE Class 9 Biology NCERT Umang 2020
Vedantu 9&10
5.1K likes
152.8K Views
4 years ago
Download Notes

List of Topics and Sub-Topics Included in NCERT Books for Class 9 Science Chapter 5 - The Fundamental Unit of Life

The important topics and sub-topics covered in this chapter 5 fundamental unit of life of class 9 are - 

  • Discovery of the cell

  • Unicellular organisms and Multicellular organisms

  • characteristics of the cell

  • structural organization of cell-like plasma membrane

  • nucleus and cytoplasm

  • DNA and cell organelles

  • Chromatin material

  • Chromosomes and proteins.

  • Mitochondria

  • Plastids and Vacuoles

The students can easily learn about all these topics from the solutions of questions of NCERT book for class 9 chapter 5 The fundamental unit of life.

FAQs on NCERT Books for Class 9 Science Chapter 5

1. Who was Robert Hooke as mentioned in NCERT Class 9 Science Chapter 5 - The Fundamental Unit of Life?

Robert Hooke was an English Botanist. In his experiments with a thin slice of cork, he discovered the cell in 1665. He was using a self-designed primitive microscope to examine the thin slice of cork when he (Robert Hooke) observed that the cork consists of the tiny box-like chambers that were forming a honeycomb-like structure. He then coined the term “cell” to represent the honeycomb cavities or compartments. What Robert Hooke actually saw was the dead cell wall of plant cells (cork).

2. What is the history of cells in NCERT Books for Class 9 Science Chapter 5 - The Fundamental Unit of Life?

Let us discuss the history of the cell from chapter 5 of class 9 science.

  • Robert Hooke discovered the cell in the year 1665, by using a self-designed microscope

  • And as with the advancement of the microscope, Leeuwenhoek became the first person to see a free-living cell in the pond water in 1674.

  • Then in 1831, after over one and a half-century later, Robert Brown found the nucleus of the cell

  • Purkinje coined the name “protoplasm” for the liquid portion of the cell, in 1839

  • Schleiden and Schwann presented their own version of cell theory, in 1838 and 1839 respectively, which stated that all plants and animals are made up of cells.

  • Rudolf Virchow took it a step further by claiming that all cells originated from pre-existing cells. 

3. Explain some of the cell Organelles discussed in NCERT Books Free Download for Class 9 Science Chapter 5 - The Fundamental Unit of Life?

A cell comprises various parts or organelles which perform various biological functions to keep the cell alive and let the cell carry on its work. These cell organelles are basically organs of the cell. Some of the organelles discussed in chapter 5 are as follows: 

  1. Endoplasmic Reticulum: Endoplasmic Reticulum (ER) plays a vital role in interpreting the genetic information given by the nucleus. These are of two types - Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum.

  2. Golgi Apparatus: Golgi apparatus manages the transportation of the protein throughout the cytoplasm.

  3. Mitochondria: known as Power house of cell, as Mitochondria produces ATP.

  4. Lysosomes: Known as Suicide bags, Lysosomes contains potent enzymes, which the helps the  cell in the digestion process.

4. What are Plastids according to NCERT Books  for Class 9 Science Chapter 5 - The Fundamental Unit of Life?

Plastids are membrane bounded organelles found exclusively in the plant cells. Plastids are of two types Chloroplast (coloured plastids) and leucoplasts (White or colorless plastids). Plastids play an important role in the manufacturing and storing of plant food. They also contain pigments necessary for photosynthesis in plants and provide color to the plants, for example Chloroplast contains the pigment chlorophyll. The pigment chlorophyll helps in the process of photosynthesis and gives plants or leaves of plants that distinct green color.