This is an introductory course of biology for a student in the engineering discipline to develop their engineering career in a bio-related field. The contents of the course include the basic knowledge of biological functions at the organ, tissue, cellular, and molecular level. It introduces students to modern biology with an emphasis on the evolution of biology as a multi-disciplinary field, to make them aware of the application of engineering principles in biology, and engineering robust solutions inspired by biological examples. This course is designed to convey the essentials of cell and molecular biology to provide a framework for more advanced courses.