HISTORY OF CELL DISCOVERY Merchants Used hand lenses to assess cloth quality Thin slices of cork Cells Invented 1 st crude microscope 1)High quality lenses 2)First light microscope 1)High quality lenses 2)First light microscope Physician that studied cancer Robert Hooke 1500s Leads to Cell Theory: 1830s Looked at and called them 1) Cell is the basic unit of life 2) All living things are made of 1+ cells 3) All cells come from pre- existing cells 1) Cell is the basic unit of life 2) All living things are made of 1+ cells 3) All cells come from pre- existing cells Hans & Zaccharias Janssen y 1600s 1665 All animals are made of cells Anton Van Leeuwenhoek Theodor Schwann Late 1600s Invented Also looked at Pond water And called the swimming microbes: “Animalcules” Matthias Schleidan Zoologist that said: All plants are made of cells Botanist that said: Rudolph Virchow : NAME ___________________

Prokaryote 1) Has no nucleus 2) No membrane-bound organelles 3) Simple 4) Evolved first 1) Has no nucleus 2) No membrane-bound organelles 3) Simple 4) Evolved first Bacteria CELL TYPES Have the following basic characteristics: Can Cells fall into two basic categories: Eukaryote Have the following basic characteristics: 1) Has a nucleus 2) Has membrane-bound organelles 3) Complex 4) Evolved later 1) Has a nucleus 2) Has membrane-bound organelles 3) Complex 4) Evolved later Example (1): Examples (4): Animals, Plants, Fungi, Protists Animals, Plants, Fungi, Protists

COMPARE PLANT, ANIMAL, AND PROKARYOTIC CELLS ANIMAL CELLS PLANT CELLS PROKARYOTE CELLS Flagella Lysosomes DNA Nucleus/Nucleolus/Nuclear Membrane Ribosomes Cytoplasm Cell Membrane Cell Wall Vesicles Large Central Vacuole Mitochondria Cilia Chloroplasts Golgi Apparatus Centrioles Rough & Smooth ER Capsule Pili

CELL ORGANIZATION CELLSTISSUEORGAN ORGAN SYSTEMORGANISM ONE CELL MANY CELLS << << LARGEST Unicellular means: Multicellular Means: Example organization: RED BLOOD CELL EPITHELIAL TISSUE HEART CIRCULATORY SYSTEM HUMAN < << < Word Bank: Organism Tissue One-cell Organ Cell Circulatory System Red Blood Cell “Many cells” Heart Human Epithelial Tissue created by joining cells that have similar function or structure Basic unit of life, stated in Cell Theory group of tissues that perform a specific function or groups of functions collection of organs that perform a specific function More complex on individual level; perform all life functions Less complex on individual level; specialized perform diff. tasks

LABEL THIS ANIMAL CELL: Mitochondria Ribosomes Vacuole Golgi Apparatus Cyotplasm Cell Membrane Nuclear Membrane Nucleus Nucleolus Endoplasmic Reticulum Site where DNA is found Vesicle

LABEL THIS PLANT CELL: Site where DNA is found Mitochondria Ribosomes Central Vacuole Golgi Apparatus Cytoplasm Chloroplast Cell Membrane Nuclear Membrane Nucleus Nucleolus Cell Wall Endoplasmic Reticulum

ORGANELLE MATCH UP a. cell wall b. cell (plasma) membrane c. nucleolus d. nucleus e. mitochondria f. ER g. Lysosome h. Ribosome i. organelles j. Cytoskeleton k. Golgi Body l. nuclear membrane m. DNA n. Vacuole o. Chloroplast p. Flagellum q. Cilia r. Centrioles s. Cytoplasm t. nuclear area Ans. On next page

1.D 2.A 3.H 4.Q 5.P 6.O 7.D 8.N 9.G 10.D 11.A 12.E 13.G 14.R 15.E 16.D 17.O 18.B 19.L 20.E 21.H 22.J 23.D 24.I 25.B 26.N 27.H 28.K