REVIEWER FOR 1ST QUARTER EXAM Flashcards
Basic unit of life
Cell
discovered that all plants are made of cells
MATTHIAS SCHLEIDEN (1838)
Cell Theory
- All living organisms are composed of one or more cells.
- The cell is the basic structural and functional unit of life.
- All cells arise from pre-existing cell through cell division.
Fertilized egg from egg cell and sperm cell
Zygote
Levels of organization
Cells > Tissues > Organs > Organ system > Organisms
Inventor of the first optical microscope (1850)
HANS AND ZACHARIAS JANSSEN
the old term for microscopic organisms that included bacteria, protozoans, and very small animals
Animalcule
Discovered bacteria and he called it as “animalcules”
Anton Van Leeuwenhoek (1674)
Coined the term ‘cell’; experimented on a piece of cork
Robert Hooke (1665)
discovered that all animals are made of cells
THEODORE SCHWANN (1839)
Discovered that all cells come from pre-existing cells; “omnis cellula e cellula”
Rudolf Virchow (1855)
means that ‘All cells come from cells. Every cell is born of a previous cell, which was born of a previous cell.’
Omnis cellula e cellula
Disproved the Theory of Spontaneous Generation or Abiogenesis which states that living organisms originated from non-living matters
Francesco Redi (1668)
Performed experiments on soup in sealed containers and proved the microorganisms that spoil the soup were AIRBORNE
Lazzaro Spallanzani
Renowned for discoveries of the principles of vaccination, microbial fermentation, and pasteurization
Louis Pasteur
Organism whose cells have no definite nucleus
Prokaryotes
Organisms whose cells have nucleus
Eukaryotes
It is separated internally into numerous little organs
Organelles
Organelles that is only in Plant Cell
Cell wall, Chloroplast
Organelles only in Animal Cell
Lysosome and Centriole
Controls passage of organic molecules and wastes into and out of the cell
Plasma Membrane
Provides structure to cell; medium in which organelles are found
Cytoplasm
Protein synthesis takes place
Ribosomes
Cell organelle that houses DNA and directs synthesis of ribosomes and proteins
Nucleus