#1.1 Cell Biology - Introduction to cell theory

Welcome everyone in the first episode of this podcast we are going to understand the key concepts of the first part of IB biology which are:

• According to the cell theory, living organisms are composed of cells
• Organisms consisting of only one cell carry out all the functions of life in that cell
• Surface area to volume ratio is important in the limitation of cell size
• Multicellular organisms have properties that emerge from the interaction of their cellular components
• Specialized tissues can develop by cell differentiation in multicellular organisms