biology

• Cell


  A structural and functional unit of life
• Robert Hooke


  • First to use a microscope to observe cork and coined what he observed
  • Responsible for the beginnings of cytology as a subdivision of Biology
• Anton Van Leeuwenhoek


  • Discovered bacteria and other microscopic organisms in rainwater
• Jean Baptiste Pierre Antoine de Monet


  • Proposed that cells are filled with fluid
• Francesco Redi and Lazarro Spallanzani


  • Disproved the Spontaneous Generation Theory
• Henri Dutrochet


  • Proposed that cell is the fundamental unit of living organism, and all living organisms are made up of cell
• Robert Brown


  • Discovered the presence of nuclei within cells, describe nucleus as small dense, round body inside the cell
• Felix Dujardin


  • Noted that all living things contain a thick jelly fluid which he called sarcode
• Matthias Schleiden and Theodore Schwann


  • Introduced the concept that all plants and animals are made up of cell
• Johannes Purkinje


  • Coined the term protoplasm to refer to the living matter of the cell
• Max Schultze


  • Use the term protoplasm to show that this material is found in all types of organisms, making the protoplasm as the physical basis of life
• Rudolf Virchow


  • Found that cells divide to form new cells and concluded that cells come from pre-existing cells, formulated the cell theory
• Louis Pasteur


  • Supplied the proof for Virchow's theory of biogenesis
• James Watson and Francis Crick


  • Built model for the structure of DNA
• Cell Theory


  • Cell is the fundamental unit of life
  • All living things are composed of cells
  • Cells arise from pre-existing cells
• Modern View of Cell Theory


  • Cells have similar basic chemical composition
  • There is a prevalence of energy flow inside the cell
  • Character traits passed from one cell to another cell in the form of DNA
• Spontaneous Generation


  Non-living things can produce living organism
• Louis Pasteur disproved this theory by his famous "Swan neck bottle experiment"
• Nucleus


  • A region in the cell where the DNA was stored
  • The "cloudy" or the light and dark regions inside the nucleus are composed of different complexes of DNA and proteins called chromatin
  • Large dark blob in the nucleus is the nucleolus
• Cell


  A structural and functional unit of life
• Robert Hooke


  • First to use a microscope to observe cork and coined what he observed
  • Responsible for the beginnings of cytology as a subdivision of Biology
• Anton Van Leeuwenhoek


  • Discovered bacteria and other microscopic organisms in rainwater
• Jean Baptiste Pierre Antoine de Monet


  • Proposed that cells are filled with fluid
• Francesco Redi and Lazarro Spallanzani


  • Disproved the Spontaneous Generation Theory
• Henri Dutrochet


  • Proposed that cell is the fundamental unit of living organism, and all living organisms are made up of cell
• Robert Brown


  • Discovered the presence of nuclei within cells, describe nucleus as small dense, round body inside the cell
• Felix Dujardin


  • Noted that all living things contain a thick jelly fluid which he called sarcode
• Matthias Schleiden and Theodore Schwann


  • Introduced the concept that all plants and animals are made up of cell
• Johannes Purkinje


  • Coined the term protoplasm to refer to the living matter of the cell
• Max Schultze


  • Use the term protoplasm to show that this material is found in all types of organisms, making the protoplasm as the physical basis of life
• Rudolf Virchow


  • Found that cells divide to form new cells and concluded that cells come from pre-existing cells, formulated the cell theory
• Louis Pasteur


  • Supplied the proof for Virchow's theory of biogenesis
• James Watson and Francis Crick

  • Built model for the structure of DNA
• Cell Theory


  • Cell is the fundamental unit of life
  • All living things are composed of cells
  • Cells arise from pre-existing cells
• Modern View of Cell Theory

  • Cells have similar basic chemical composition
  • There is a prevalence of energy flow inside the cell
  • Character traits passed from one cell to another cell in the form of DNA
• Spontaneous Generation


  Non-living things can produce living organism
• Louis Pasteur disproved this theory by his famous "Swan neck bottle experiment"
• Nucleus


  • A region in the cell where the DNA was stored
  • The "cloudy" or the light and dark regions inside the nucleus are composed of different complexes of DNA and proteins called chromatin
  • Large dark blob in the nucleus is the nucleolus
• Ribosomes


  • Responsible for production of protein (protein synthesis)
  • Composed of 2 subunits: large sub-units and small subunits
  • They can be free floating in cytoplasm or attached in the rough endoplasmic reticulum
• Rough Endoplasmic Reticulum


  • Site of protein synthesis, due to the presence of the attached ribosomes
  • It is also responsible with the attachment of glycoproteins