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Biology 21
Cell Structure Lab
Onion Skin Cells
Observe: cell walls, nucleus, leucoplasts
May also see: plasmodesma(ta), middle lamella, central vacuole
Cheek Cells
(A type of epithelial cell)
Observe: cell membrane, nucleus, cytoplasmic inclusions
May also see: nucleolus
Elodea Cells
Observe: cell wall, chloroplasts
May also see: nucleus
Blood Smear
Frog blood
Determine the differences.
Human blood
Leaf Tissue
(cross section)
Observe: cell wall, chloroplasts
Can a cell membrane be seen?
Giant Multipolar Neurons
Observe: Long extensions (processes)
Which cellular component
stabilizes the extensions?
Sea Star Eggs
(Unfertilized)
Observe:
Plasma membrane
Nucleolus
Nucleus
Frog Sperm
Observe:
Head
Tail (Flagellum)
Human Sperm
Adipose Tissue
Observe: clear area where fat was stored, nucleus, cytoplasm
Epithelium
(Columnar cells
from Intestine)
Electron Micrograph
Observe: nucleus
plasma membrane
evidence of microvilli
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