Bio 2/3

Microscopy

used to study things too small for our eyes to see.

Cell Fractionaction

Takes cells apart and separates major organelles and other subcellular structures from one another based on size and density.

Homogenization

First step of Cell fractionation, blended up tissue

Centrifugation

Homogenate in test tube spun in centrifuge to separate heavier organelles from others into a pellet and supernatant. Spun for longer and faster to continue (differential ______)

Taxonomy Order

DKPCOFG ( Domain, kingdom, phylum, class, order, family, genus ,species)

3 domains of life

Prokaryota, Archea, Eukaryota

Prokaryotes

Single Cell org. without nucleus (Bacteria, Eubacteria)

Eukaryotes

Animalia and Plantai. Cells with membrane bound nucleus.

Plasmodesmata

Cytoplasmic channels through the cell walls that connect the cytoplasms to adjacent cells.