The Cell Types The Basic Unit of Life Is the CELL. * Life doesn’t exist outside a cell. The Basic Unit of Life Is the CELL. * Life doesn’t exist outside.

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Presentation transcript:

The Cell Types The Basic Unit of Life Is the CELL. * Life doesn’t exist outside a cell. The Basic Unit of Life Is the CELL. * Life doesn’t exist outside a cell.

Cytology- The Study Of Cells  Unicellular life (one cell)  Multicellular life (many cells) Carry on similar ‘life activities’ ie: reproduction, obtaining NRG, removing waste, etc.

Prokaryotic Cells Eukaryotic Cells No Central Nucleus Less complex yet still carry out every activity associated with living things. EXAMPLE: Bacteria Central Nucleus which contains their genetic material. EXAMPLES: Animal & Plant Cells 2 Types of Cells: All cells have two structures in common: cell membrane and DNA.

Eukaryotic Animal Cell Animal Cells Have: lysosomes, centrioles, flagella Not in Animal Cells: a Cell Wall, large vacuole, & chloroplast Eukaryotic Plant Cell Plant Cells Have: a Cell Wall, large vacuole, & chloroplast Not in Plant Cells: lysosomes, centrioles, flagella

Virus  Contains DNA or RNA surrounded by a protein coat  Can replicate only by infecting living cells. It needs a host.

Lactobacillus sp. Bacteria

Lactobacillus, sp

Anthrax Bacteria

Strep Throat Bacteria

Elodea sp. The Water Weed

Elodea Leaf Cell Onion Cell

Allium sp. “onion cells”

Potato Cell Onion Cell

Solanum tuberosum “potato cells”

Typical Animal Cell

Homo sp. Epithelial Cells

Human Cheek Cell

Homo sp. “blood cells”

Human Blood Smear RBC Platelets WBC

CELLS IN YOUR BLOOD RBC WBC Platelets

RBCs in a Blood Clot Formed By Platelets

Malaria Parasite in RBC Leukemia -High #s of WBC

A White Blood Cell Attacking Bacteria Found In Raw Eggs

Virus

Typical Virus cell pg. 79 in New Book

VIRUS HIV

NERVE CELLS IN YOUR BRAIN