CELLS

DIFFERENCES

• Plant cells have a rigid outer cell wall
• Animal cells only have a squishy cell membrane
• Plant cells have one large vacuole
• Animal cells often have many small vacuoles
• Plant cells have plastids and chloroplasts

HUMAN CHEEK CELLS

• What do you notice about the shape?
• What parts of the cell can you see?
• How would i know this is an animal cell?

SALAMANDER LIVER CELLS

• What do you notice about these cells?
• What organelles can you see?
• Vacuoles show up on dyed cells as clear areas. Do you see any?
• What similarities do you see between this slide and the first slide?

CORK CELLS

• How are the cells arranged?
• How do these cells compare to the first two sets of cells?
• Can you tell where the cell wall of one cell begins and the other ends?

ONION BULB EPIDERMIS CELLS

• How do the onion cells compare to the cheek cells?
• Which set of cells do these look the most like?
• How is this one different from the cork slide?
• Which organelles do you see?

PRIVET LEAF CELLS

• Which organelles do you see?
• How many vacuoles (clear area) do you see in each cell?
• Look for dark areas. These are chloroplasts.
• How many chloroplasts are there?
• Do you think all plant cells have chloroplasts?

PICK AT LEAST ONE THING TO COMMENT ON

• What questions come to mind after seeing these cells?
• Where could you learn more about cells?
• What types of cells would be interesting to investigate? Why?
• Do you think all cells are visible with a microscope? Explain.
• Do you think that there are any cells that are neither plant nor animal cells?