gb prelims Flashcards
- science of life and living organisms
BIOLOGY
- broad and multidisciplinary science made up of
different branches
BIOLOGY
- study of animals
○ Zoology
- study of plants
○ Botany
- study of microorganisms
○ Microbiology
- basic, structural, functional, and biological unit of
all known organisms - “sihay” in Filipino
CELL
- branch of biological science that deals with the
study of cells
CYTOLOGY
- person who studies the cell
CYTOLOGIST
- The cell theory was proposed by ———–through observing plant
and animal cells respectively.
Matthias Schlieden
and Theodor Schwann (1838)
- The cell is the unit of structure, physiology, and
organization in living things. - The cell retains a dual existence as a distinct
entity and a building block in the construction of
organisms. - Cells form by free-cell formation, similar to the
formation of crystals (spontaneous generation).
ORIGINAL CELL THEORY
- The cell is the unit of structure, physiology, and
organization in living things.
ORIGINAL CELL THEORY
- The cell retains a dual existence as a distinct
entity and a building block in the construction of
organisms.
ORIGINAL CELL THEORY
- Cells form by free-cell formation, similar to the
formation of crystals (spontaneous generation).
ORIGINAL CELL THEORY
- All known living things are made up of cells.
- The cell is the structural & functional unit of all
living things. - All cells come from pre-existing cells by division.
(Spontaneous Generation does not occur). - Cells contains hereditary information which is
passed from cell to cell during cell division. - All cells are basically the same in chemical
composition. - All energy flow (metabolism & biochemistry) of
life occurs within cells.
MODERN CELL THEORY
- All known living things are made up of cells.
MODERN CELL THEORY
- The cell is the structural & functional unit of all
living things.
MODERN CELL THEORY
- All cells come from pre-existing cells by division.
Spontaneous Generation does not occur
MODERN CELL THEORY
- Cells contains hereditary information which is
passed from cell to cell during cell division.
MODERN CELL THEORY
- All cells are basically the same in chemical
composition.
MODERN CELL THEORY
- All energy flow (metabolism & biochemistry) of
life occurs within cells.
MODERN CELL THEORY
○ inventor of the first so-called compound
microscope.
ZACHARIAS JANSSEN AND HANS JANSSEN (1600s)
○ English scientist and polymath
○ coined the term “cells” from observing
plant specimens
○ reminded him of rooms, hence “cells”
- ROBERT HOOKE (1655)
○ Italian physician
○ refuted spontaneous generation by
observing flies and maggots on rotten
meat; Father of Parasitology
- FRANCESCO REDI (1668)
○ Dutch scientist
○ observed protozoa and bacteria and
called them` “animalcules”
○ observed RBCs ; Father of Microbiology
- ANTONY VAN LEEUWENHOEK (1674)
○ Scottish botanist
○ observed the nucleus in better detail
than other cytologist in his time
- ROBERT BROWN (1833)
○ observed living internal substance in a
cell and called it “sarcode”
- FELIX DUJARDIN (1834)
○ coined the term “protoplasm” (nucleus +
cytoplasm) from animal embryos
- JAN EVANGELISTA PUKINJE (1835)
○ made cellular pathology into a system of overwhelming importance through his lecture "Cellular Pathology as Based upon Physiological and Pathological Histology" ○ “omnis cellula e cellula” ○
- RUDOLF VIRCHOW (1858)
○ Swiss physician
○ first to identify DNA as a distinct
molecule
- FRIEDRICH MIESCHER (1869)