NCERT Class 9 Science Chapter 5 The Fundamental Unit of Life Solutions
NCERT Class 9 Science Chapter 5 The Fundamental Unit of Life Solutions GENERAL SCIENCE TEXTUAL QUESTIONS AND ANSWERS INTEX QUESTIONS AND ANSWERS Textbook Page No. 59 1. Who discovered cells and how? Ans. Robert Hooke, an English botanist, observed thin slices of cork from the bark of a tree under a microscope which he himself had designed. He was excited to see small spaces bound by firm walls just like a honey comb. He used the term “cell” first to denote the compartments or spaces. This discovery was made in 1665. This experiment was conducted at the “Royal Society of London”. He published his work in a book “Micrographia”. 2. Why is the cell called the structural and functional unit of life? Ans. Cells are the structural and functional units of life because a cell is capable of independent existence and can carry out all the vital functions for living. A cell carries out functions like nutrition, respiration, excretion, transportation and reproduction; the way an individ...