CELL THEORY, STRUCTURE AND FUNCTION Flashcards
Invented compound optical microscope. 1590s
Zacharias Janssen and hans
Slice of cork and observed a tiny unit of room like structure called? Person?
Cellulae, Robert hooke
Observe the live cell in 1674. Micros9with improve lenses, magnify 270-300 fold
Anton van Leeuwen hoek
Cells are the building blocks of plants in 1838
Matthias Jacob schleiden
Cells are the fundamental units of animal
Theodor schwann
They led the foundation of cell theory
Schleiden and schwann
It states that the cells are the basic unit of all living organisms
Cell theory
Stated the German “ omnis e cellula e cellula”
Rudolf Virchow
Translate omnis cellula e cellula
New cells come from already existing cells
Three important points of modified cell theory
- Basic structural and functional unit
- Orgs made up cells
- Cells arise from existing one
Branch of bioloy dealing with structure, functions, multiplication, pathology and life history of cells
Cytology
Professional who study the cell
Cytotechnologist/cytologist
2 types of cell
Prokaryotic and eukaryotic
Single cell like bacteria
Prokaryotic
Complex cell plants and animals
Eukaryotic
3 major parts of a cell
Cell membrane
Nucleus
Cytoplasm
It controls the passage of materials into and out of the cell
Plasma membrane
Control center of the cell. Determine how the cell function
Nucleus
Contains the genetic materials of the cell
Deoxyribonucleic acid
Dense region of nucleic acid in nucleus and is site of ribosome
Nucleolus
Gel like fluid inside the cell and is medium for chemical reaction
Cytoplasm
Subcellular organelles
Little organs that suspended in cytoplasm
Microtubules that help separate chromosomes and move during cell division
Centrioles
Interconnected network of flatted sacs
Endoplasmic reticulum
