Golgi apparatus class 9

These The Fundamental Unit of Life NCERT Solutions for Class 9 Science Chapter 5 Class 9 Science Chapter 5 The Fundamental Unit of Life InText Questions and Answers Question 1. Who discovered cells and how? Answer: Cells were discovered in 1665 by an English Botanist, Robert Hooke. He used a primitive microscope to observe cells in a cork slice. Question 2. Why is the cell called the structural and functional unit of life? Answer: Cells constitute various components of plants and animals. A cell is the smallest unit of life and is capable of all living functions. Cells are the building blocks of life. This is the reason why cells are referred to as the basic structural and functional units of life. All cells vary in their shape, size, and activity they perform. In fact, the shape and size of the cell is related to the specific functions they perform. Question 3. How do substances like CO 2 and water move in and out of the cell? Discuss. Answer: The cell membrane is selectively permeable and regulates the movement of substances in and out of the cell. Movement of CO 2: CO 2 is produced during cellular respiration. Therefore, it is present in high concentrations inside the cell. This CO 2 must be excreted out of the cell. In the cell’s external environment, the concentration of CO 2 is low as compared to that inside the cell. Therefore, according to the principle of diffusion, CO 2 moves from a region of higher concentration (inside the cell) towards a region of lower concen...

NCERT Solutions Class 9 Science Chapter 5 The Fundamental Unit of Life – Here are all the NCERT solutions for Class 9 Science Chapter 5. This solution contains questions, answers, images, step by step explanations of the complete Chapter 5 titled The Fundamental Unit of Life of Science taught in class 9. If you are a student of class 9 who is using NCERT Textbook to study Science, then you must come across Chapter 5 The Fundamental Unit of Life. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 9 Science Chapter 5 The Fundamental Unit of Life in one place. For a better understanding of this chapter, you should also see Chapter 5 The Fundamental Unit of Life Class 9 notes , Science. NCERT Solutions For Class 9 Science Chapter 5 The Fundamental Unit of Life Topics and Sub Topics in Class 9 Science Chapter 5 The Fundamental Unit of Life: • The Fundamental Unit of Life • What are Living Organisms Made Up of? • What is a Cell Made Up of? What is the Structural Organisation of a Cell? These solutions are part of IN-TEXT QUESTIONS SOLVED NCERT Textbook for Class 9 Science – Page 59 Question 1. Who discovered cells, and how? Answer: Robert Hooke discovered cells in 1665 while examining a thin slice of cork through a self-designed microscope. He saw that the cork resembled the structure of a honey comb consisting of many little compartments. These small boxes are called cells. More Resources for CBSE...