Grade 5 Science: Topic - Organisms; Characteristics of a Cell / Let's go microscopic inside your body! In this book you will be learning about the characteristics of the cell which is the basic unit of life. Learn to identify the structure as well as function of the different cell parts like the cell membrane cytoplasm mitochondria and ribosomes. Realize that healthy cells are key to a healthy you. Get a copy of this book and start reading today.