5-6 Microscope Flashcards
Artisole made careful observations and descriptions of…
More than 500 animal species and set up a classification system based on observations.
Hans and Zacharias Janssen…
Invented the microscope in 1595.
Hans and Zacharias used…
Ocular and Objective lenses
Robert Hooke was using a…
Hand microscope that had three lens system
The illumination was a beam of light concentrated on a specimen by…
Passing light through a water filled glass.
Robert Hooke published his Micrographia containing…
38 illustrations of plant, animal, and non-living objects viewed through a microscope
Hooke discovered that the cork primarily of…
Air pockets surrounded by a thin mesh of fibre.
Antoni Van Leeuwenhoek, using only a simple…
Single lens microscope rather like a magnifying glass.
Van Leeuwenhoek’s drawings were called…
Animacules
Van Leeuwenhoek’s microscope was…
Held directly at the eye
His microscopes had a smaller lens which…
Provided higher magnification
Early compound microscopes…
Were less efficient
Field of view:
The area you see through the eye piece of a microscope.
Francesco Redi questioned…
The belief that maggots appeared spontaneously from raw meat
John Needham proved that living things…
Could be produced from non-living matter
Lazzaro Spallanzani proposed…
That there were responsible for the new growth
Life Forces:
A natural force postulated to produce life spontaneous.
Critics suggested that all Spallanzani has shown was…
That air was required for spontaneous generation to occur
Louis Pastuer submitted the experiment of…
Boiling meat broth in a flask
Robert Brown identified an important…
Cell structure, the nucleas.
Nucleas: (in cells)
Organelle that contains DNA, genetic material, and directs all cellular activities
M.J. Scgleider observed that all plants were composed of cells and he proposed…
That the nucleas was the structure responsible for the development of the cell.
Theodor Schwann believed that there must be…
Similarities between plant and animal tissue
Brown and Schlelden proposed that all plants and animal were composed of…
Cells and that the cell was the basic unit of all organisms.
