Module 1.1 - The Cell Theory Flashcards
These are the smallest units of life that can function independently
Cells
Is an instrument used for magnifying objects otherwise too small to be seen.
Microscope
They discovered that the combination of two lenses in a particular arragements was the secret to better visualization and magnification of objects.
Hans Janssen and Zacharias Janssen
When did Hans and Zacharias Janssen discovered the earlier version of a microscope?
1597
He was an English physicist that melted strands of spun glass to create lenses.
Robert Hooke
When did Robert Hooke produced lenses out from a melted spun glass.
1665
He is considered to be the “Father of Microscopy”.
Robert Hooke
What material Robert Hooke used that appeared to be divided into little boxes?
Cork or Dead Cork Tissue
A book where Robert Hooke detailed his observations of this tiny and previously unseen world.
Micrographia
A term Hooke used to those units he saw under the lens becuase they looked like the cubicles where monks studied and prayed.
Cells or Cellula (According to the book)
A dutch maker of microscope and is the first person to see live cells using a self-made microscope.
Anton van Leeuwenhoek
What material did Leeuwenhoek used in order to observe this microscopic things?
Pond water
A term which Leeuwenhoek used to name those creatures he saw under his microscope which means “little animals”.
Animalcules
A German botanist that concluded the postulate that plants come from cells.
Matthias Schleiden
When did Schwann discovered his postulate?
1839
He declared that animals, just like plants are likewise composed of cells.
Theodor Schwann
When did Matthias Scheiden concluded his postulate?
1838
He declared “Omnis cellula e cellula” which meant cells come from preexisting cells.
Rudolf Virchow
The concepts of Schleiden, Schwann, and Virchow were summarized into what is know today as the?
Cell theory
Recite the cell theory.
- All organisms are composed of cells.
- Cells are the smallest and basic units structure and functionin organisms
- Cells arise only from previosly existing cells.
Recite the expanded cell theory.
- Cells carry genetic material passed to daughter cells during cellular division.
- All cells are essentialy the same in chemical composition.
- Energy flow (metabolism, biochemistry) occurs within cells.
