CELL STRUCTURE AND FUNCTION CELL ➔is the basic unit of structure and function of life. ➔In other words, cells make up living things and carry out activities that keep a living thing alive. ROBERT HOOKE In the 1660s there was a man named Robert Hooke. Robert lived in Britain and was a scientist. He was the first person to observe cells. Classification of Cells ❖ According to number: 1.UNICELLULAR- made up of one cell 2.MULTICELLULAR- two or more cells ➔ According to structure: 1. PROKARYOTIC-without true nucleus, nucleiod region instead Ex. bacteria 1. EUKARYOTIC- with “true” nucleus, separated by nuclear membrane Ex. animals, plants, fungi, protists RNA also serves as the raw material for making ribosomes...