robert hooke was the first person to observe living cells.
robert hooke was the first person to observe living cells.
who was the first person to observe living cells?
robert hooke ,
bullet::::- 100 ce – chinese use chrysanthemum as a natural insecticide.









































section::::pre-20th century.









































bullet::::- 1663 – first recorded description of living cells by robert hooke.









































bullet::::- 1677 – antonie van leeuwenhoek discovers and describes bacteria and protozoa.









































bullet::::- 1798 – edward jenner uses first viral vaccine to inoculate a child from smallpox.









































bullet::::- 1802 – the first recorded use of the word biology.









































bullet::::- 1824 – henri dutrochet discovers that tissues are composed of living cells.









































bullet::::- 1838 – protein discovered, named and recorded by gerardus johannes mulder and jöns jacob berzelius.
timeline of biotechnology
before the introduction of the phase contrast microscope it was difficult to observe living cells. as living cells are translucent they must be stained to be visible in a traditional light microscope. unfortunately, the process of staining cells generally kills the cells. with the invention of the phase contrast microscopy it became possible to observe unstained living cells in detail. after its introduction in the 1940s, live cell imaging rapidly became popular using phase contrast microscopy. the phase contrast microscope was popularized through a series of time-lapse movies (video 1), recorded using a photographic film camera. its inventor, frits zernike, was awarded the nobel prize in 1953. other later phase contrast techniques used to observe unstained cells are hoffman modulation and differential interference contrast microscopy.
live cell imaging