Biology Unit 1.1 Cells

Biology is the study of living organisms. 

All living organisms have seven characteristics in common:

Movement

Respiration

Sensitivity

Growth

Reproduction

Excretion

Nutrition

All living oranisms consist of cells. Some, for example bacteria, only consist of one cell and are described as unicellular whilst the rest contain many cells and are described as multicellular.

Cells were first disovered by Robert Hooke in 1665 while studying a section of cork under a microscope. It was soon realised that these…