biology 21 cell structure lab. onion skin cells observe: cell walls, nucleus, leucoplasts may also...

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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

Human bloodDetermine the differences.

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)

Observe: nucleus plasma membrane evidence of microvilli Electron Micrograph

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