Studied by 16 people
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Biology
A natural science concerned with the study of life and living organisms.
Glass
Invention of Romans in the 1st century.
Eye glass
Invention of Romans in the 13th century.
Compound microscope
Invention of Zacharias and Hans Jansen in the 16th century.
1665
Year when Robert Hooke discovered the cell.
High specs single lens microscope
Invention of Antoine Van Leeuwenhoek in 1932.
Lentil
Lens is derived from the Latin word for this.
Robert Hooke
Discovered small compartments of cellula.
Antonie Van Leeuwenhoek
Discovered egg cells, sperm cells, and cell fertilization.
Matthias Jakob Schleiden
Botanist who concluded that the cell is the basic unit of life.
Theodore Schwann
Zoologist who concluded that the cell is the basic unit of life.
Rudolf Ludwig Carl Virchow
Noticed organ and tissue diseases come from affected cells and stated that cells arise from pre-existing cells.
Robert Remak
Jewish scientist in 1855 who proved the idea of cell division by hardening a cell membrane.
The spontaneous generation theory
Archaic theory stating that living organisms develop from non-living matter.
Francesco Redi
Experimented on 3 jars, disproving the spontaneous generation theory.
John Needham
Boiled chicken broth, believed the spontaneous generation theory is real.
Lazzaro Spallanzani
Disproved John Needham's findings.
Louis Pasteur
Experimented with an S-shaped flask.
The Cell
Basic unit of life.
Cell membrane
Also called plasma membrane, responsible for regulating in and outside of the cell.
Cytoplasm
Gelatinous substance that holds materials within the cell.
Centrioles
Barrel-like structures located in the cytoplasm, acting as a support structure.
Nucleus
Control center of the cell.
Nucleolus
Largest structure in the nucleus, site of ribosome production.
Ribosomes
Sites of protein synthesis.
Endoplasmic Reticulum
Protein folding and transportation system within the cell.
Golgi Bodies
Packages proteins before transportation.
Lysosomes
Organelles that break down proteins.
Mitochondria
Powerhouse of the cell and source of chemical energy.
Cell wall
Structural layer outside the cell.
Flagella
Tail-like structures that provide motility.
Cilia
Hair-like structures, absent in bacteria and archaea.
Chitin
Substance that forms exoskeletons, providing protection to fragile bodies.
Root Hair
Structures that absorb nutrients from the environment.
Chloroplast
Converts sunlight to energy and contains chlorophyll.
Vacuole
Maintains water balance in plants and stores waste products in animal cells.
Prokaryote
Simple organisms, mostly unicellular, lacking a true nucleus.
Prokaryotic Cells
Developed approximately 3.5 billion years ago.
Eukaryote
Larger and more complex organisms, uni- or multicellular, containing membrane-bound organelles.
Unicellular
Organisms that reproduce asexually and utilize phagocytosis for nutrition.
Multicellular
Organisms such as plants and animals that undergo cell division and are capable of nutrition and digestion.
