Page No 92: Question 3.1: What is the basic theme of organization in the periodic table? Answer: The basic theme of the organization of elements …
Page No 65: Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one …
Page No 22: Question 1.1: Calculate the molecular mass of the following: (i) H2O (ii) CO2 (iii) CH4 Answer: (i) H2O: The molecular mass of water, H2O …
Page No 341: Question 1: Define the following: (a) Exocrine gland (b) Endocrine gland (c) Hormone Answer: (a) Exocrine glands: Glands that discharge secretions into ducts are known as …
Page No 328: Question 1: Briefly describe the structure of the following: Brain (b) Eye (c) Ear Answer: (A) Brain: Brain is the main coordinating centre of …
Page No 313: Question 1: Draw the diagram of a sarcomere of skeletal muscle showing different regions. Answer: The diagrammatic representation of a sarcomere is …
Page No 300: Question 1: Define Glomerular Filtration Rate (GFR) Answer: Glomerular filtration rate is the amount of glomerular filtrate formed in all the nephrons …
