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27 Cards in this Set

  • Front
  • Back
Who is Hooke?
He named cells, which he identified in a cork
Who is Leeuwenhoek?
He observed living microbes in his microscope in rainwater, plaque, blood...
1839 Schwann and Schleiden
They developed cell theory-basic unit of structure and function of all organisms; activity of the organism depends on the activity of its cells.
Who is Virchow?
biogenesis-living cells can come only from other living cells.
Cell ______ and _____ varies according to __________.
shape, size, function
simplest cell, yet can live in any enviroment.
What is a Eukaryote?
it is larger, more complex and specialized-have nucleus and other membrane- enclosed organelles, pairs of chromosomes, moving cytosol, mitotic cell division, and cellulose in cell walls.
system, organ, tissue, cell.
What are prokaryotic cell walls?
lipids, proteins, carbohydrates (no cellulose), one circular chromosome of DNA attached to the plasma membrane; amny are helpful- photosynthesis, antibiotics, decomposers in enviroment, used in food, some are deadly.
Eukaryotes are____
comparted seperates organelles for division of labor- efficient.
Function: Nucleus
control center for all activity.
synthesis of RNA (for protein making).
Nuclear envelope
double membrane semi permeable.
contain DNA for heredity
semi-fluid (cytosol) and all organelles
ATP synthesis for respiration, "powerhouse" for energy.
Cell (plasma) membrane
double semi permeable; controls in/out of materials
Endoplasmic Reticulum
network system of tubes connecting organelles smooth/rough (has ribosome)
small bodies which proteins are made in
Golgi Apparatus
flat sacs that package and secrete molecule for export.
vesicles for storage of salts, enzymes, food , pigments, H2O (contractile to pump water in protests); larger in plants.
protein network for shape, movement-made of microtubes

Flagella-whip like
cillia- short hairs
Cell Wall
nonliving, rigid; gives support for plants only
- green plastids for plants only
have enzymes; digest waste and bacteria
tube like; for cell reproduction in mitosis
double layers of phospholipids with embedded proteins. Sugars attach to lipids and proteins from the unique surface of cells used for their recognition.

fluid mosaic model- fluidity and asymmetry