ROBERT HOOKE 1st to see cells
Cork Cells
Cork cells. Are they living? Which cell part are we seeing here?
Hookes’ actual sketch of cork Cells done in 1653
CELL THEORY
• ALL living things are made of 1 or more cells• CELLS come only from other
living cells• A CELL is the basic unit of
structure and function in all living things
A THEORY
• Is NOT an educated Guess.
A THEORY
• * Explains many observations
• * Is Testable
• * Could be disproven
• * Allows us to make accurate predictions
Find: Mitochondria, endoplasmic reticulum, ribosomes
CHLOROPLASTS
Chloroplasts. Where photosynthesis happens
Large central vacuoles in plant cells
Golgi Complex
Photo: Golgi complex pinching off vesicles full of proteins.
Photo of a golgi complex
Golgi 3D View
Bacteria Cell
Cells have an internal skeleton
An Onion Cell Nucleus absorbs iodine and stains darker than the cytoplasm
Fluorescent stain makes nucleus glow Blue
Another color stain. Nuclei are dark red
Cancer Cells often have more than 1 nucleus
Cancer cell with several nuclei
Evidence of cancer ?
Is There evidence of cancer?
