What is the endomembranous system?
~ Helps compartmentalize the cell for efficient work. Made of membranes
connected directly OR by vesicle transfer. (Also restricts enzyme reactions to certain
areas.)
Which organelles are involved in the endomembranous system?
~ Endoplasmic reticulum
G...
What are the 5 characteristics of life a cell can perform?
✓~ Organization
Can acquire materials/energy
Responds to stimuli
Reproduces and develops
Adapts, has adaptations
Who were the "cell" pioneers? what did they do?
✓~ Scottish botanist Robert Brown - described the nucleus of cells (1831)
Matthias Jakob Schleiden - All plants are composed of cells (Elodea) (1838)
Theodor Schwann - All animals are composed of cells (1839)
, Rudolf Virchow - All cells arise from existing cells. (1850's)
What is the cell theory?
✓~ All organisms are composed of cells
The cell is the most basic unit of life (structure & function)
All cells arise from pre-existing living cells BIOGENESIS
What is a "prokaryotic" cell?
✓~ Lacks a membrane-bound nucleus
Can be divided into 2 domains: Bacteria and Archaea
How do prokaryotic cells differ from Eukaryotic cells?
✓~ prokaryotic cells are simpler and smaller
What constitutes the "cell envelope" of a prokaryotic call?
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