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


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FAQs on The Fundamental Unit of Life- NCERT Solutions of Chapter 5 (Science) for Class 9
1. What is meant by Osmosis and Diffusion as per the NCERT Solutions?
Osmosis is a process through which water moves in and out of the cell membrane. The movement is always from a region of higher concentration to lower concentration of water through a selectively permeable membrane until it reaches an equilibrium.
In a similar manner, diffusion refers to the process by which Carbon Dioxide moves in and out of the cell membrane. The cellular wall contains a high level of CO2, whereas the CO2 concentration outside is significantly low. This causes the CO2 to move from a region of higher concentration to that of low concentration to maintain a level of equilibrium.
2. What are the important topics in the Fundamental Unit of Life as per the NCERT Solutions?
The important topics that students must learn in the chapter fundamental unit of life are – Discovery of the cell, Unicellular organism, Multi-cellular organism, characteristics of the cell, structural organization of cell-like plasma membrane, nucleus, and cytoplasm, DNA, Chromatin material, Chromosomes, and proteins.
Apart from this, students must also focus on topics like Mitochondria, Plastids, lysosomes, chloroplast, leucoplast, vacuoles, Golgi apparatus, Ribosomes, Endoplasmic reticulum, and Cell organelles. Students should focus on learning the topics extensively. Diagrams of every structure and its parts should be learned in detail to answer MCQ, long answer and questions based on diagrams.
3. What is the difference between Prokaryotic and Eukaryotic cells as per the NCERT Solutions?
There are four main differences between Prokaryotic and Eukaryotic cells, which are largely related to their structures and size.
The prokaryotic cells are smaller in size, whereas the Eukaryotic cells are generally larger. The nuclear region of the prokaryotic cell is known as nucleoid and lacks a nuclear membrane. In comparison, the Eukaryotic cell has a well defined nuclear membrane. The prokaryotic cell consists of a single chromosome, while the Eukaryotic cell has multiple chromosomes. In a prokaryotic cell, the membrane-bound cell organelles are absent, whereas in the eukaryotic cell the membrane-bound cell organelles are present.
4. How many questions are present under each exercise of the NCERT Solutions for Class 9 Science Chapter 5?
There are about 4 to 7 questions under each exercise in the NCERT solutions for Class 9 Science Chapter 5. All the questions have detailed solutions under them. Examples from within the textbook are also answered. Wherever necessary, the answers are explained in-depth with the help of tables and diagrams as well. All answers designed by experts are given in a simpler way to assure the students understand the concept easily. You can refer to Vedantu’s NCERT solutions for Class 9 Science Chapter 5 if you are looking for high-quality solutions.
5. How are the NCERT Solutions for Class 9 Science Chapter 5 designed in Vedantu?
All answers from the NCERT book are answered by Vedantu. Vedantu makes learning and memorising answers easier by making the answers interactive with the help of tables and diagrams. The diagrams are also labeled to help the students memorise easily. All questions are answered with the help of professionals. You can download these solutions free of cost. You can download them, save them on your computer and refer to them anytime while preparing for exams.
6. Why is the cell the basic unit of life according as per the NCERT Solutions?
A cell is the basic unit of life as it is the unit that forms anything in our body. They form the tissues that further form the organs and different systems in our body. Tissues help in the functioning of these systems and processes like digestion, respiration, etc. in our bodies. This is why cells are referred to as the structural and fundamental units of life.
7. Who discovered the cell and how, according to as per the NCERT Solutions?
Robert Hooke, in 1665, discovered the cell. He was examining a thin slice of cork through a microscope when he observed its honeycomb-like structure. It seemed to comprise mini compartment-like structures. These structures were then called cells. To study more and learn through diagrams students can refer to vedantu website or the app.
8. Can NCERT Solutions help you in the overall preparation for Class 9 Science Chapter 5 for the exam?
Yes, NCERT Solutions of Class 9 Science Chapter 5 introduces students to important topics and foundations that the students must know and have a strong base in for higher classes. The students should thoroughly revise what is taught in school and make regular notes. Note-writing will help them understand and memorise the chapter. Attempt and practice all the questions in the NCERT textbook and also attempt the extra questions in the NCERT Solutions PDF available online on the Vedantu website. The PDF will also help you revise quicker.