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Cell Theory
All organisms are composed of cells. All cells come from preexisting cells.q
Prokaryotic Cells
Lack membrane- bound organelles and nucleus. (Bacteria and Archea).
Sex Pillus
Transfers DNA from one cell to the next.
Fimbrae
Hairlike bristles that allow adhesion to the surface.
Flagellum
helps move the cell.
Inclusion Body
stored nutrients for later use.
Mesosome
plasma membrane that folds into the cytoplasm and increaes surface area.
Ribosome
Site of protein synthesis.
Nucleoid
Location of the bacterial chromosome.
Glycocalyx
gel-like layer of polysaccharides outside cell wall.
Endomembrane System
Organelles that communicate with one another.
Cell Fractionation
The breaking apart of cellular components.
Differential Centrifugation
Allows seperation of cell parts. Works like a washer.
Turgor
When plants come back to life when you water them.
Nucleus
Command center of cell, usually near center.
Ribosomes
Consists of a large subunit and a small subunit.
Rough ER
Studded with ribosomes on cytoplasmic side. Protein anabolism.
Smooth ER
No ribosomes. Synthesis of lipids.
Golgi Apparatus
Modifies proteins and lipids.
Apoptosis
Programmed cell death.
Chloroplast Structure
Bounded by double membrane. Inner membrane infolded.
Chloroplast
Captures light energy to drive cellular machinery.
Cristae
Infoldings of inner membrane that encloses matrix.
Matrix
Inner semifluis containing respiratory enzymes.
Cytoskeleton
Maintains cell shape.
Actin Filaments
The smallest. Acts like a milking tube.
Intermediate Filaments
Used to hold cells together.
Microtubules
Used to assemble and disassemble parts of the cell.
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