bio

• Largest cell

  Egg Cell
• Smallest/Granule cell

  Sperm Cell
• Longest/Tallest cell

  Nerve Cell
• Bioenergetics


  Bio life, Energetics - Energy Produced, Logus - Study
• Cell


  The basic unit of life in all living things
• Antoni van Leeuwenhoek, the Father of Microbiology, constructed a microscope that revealed tiny organisms


  1665
• Antoni van Leeuwenhoek scraped tartar from his teeth and saw many very small animalcules
• Matthias Schleiden studied plant tissues and concluded that plants are made of cells


  1838
• Theodor Schwann reported that animal tissues were also made up of cells


  1839
• Cell shape


  Circular - Animals, Rectangular - Plants
• Cell


  The basic unit of life, the functional and structural unit of life
• Cell


  A membrane bound body that contain all chemical molecules that help support organism life
• Cells


  Carry out metabolism and homeostasis, and reproduce either on their own or as part of a larger organism
• Cell division


  Passes on hereditary material - DNA (Deoxyribonucleic acid) to offspring
• Homeostasis


  A self-regulating process by which a living organism can maintain internal stability while adjusting to changing external conditions
• Metabolism


  The process by which the body changes food and drink into energy, including anabolism (building up) and catabolism (breaking down)
• Components common to all cells

  • Plasma Membrane
  • Cytoplasm
  • DNA
  • Ribosome
• Plasma Membrane


  The outermost membrane that separates the cell's contents from the external environment, selectively permeable
• Cytoplasm


  A jelly-like mixture of water, sugars, ions and proteins enclosed in the plasma membrane, where a major part of cell's metabolism occurs
• DNA - Deoxyribonucleic Acid


  The genetic material that every cell starts out life with, contained in the nucleus in eukaryotic cells
• Ribosome


  An intracellular structure made of both RNA and protein, the site of protein synthesis in the cell
• Robert Hooke, a contemporary of Leeuwenhoek, observed a cork under a microscope and discovered it to construct of a “great many little boxes”