one of first scientists to observe cells

through a microscope

surrounds the plant cell

gives support and shape to plant cell

does not exist in animal cells

surrounds the animal cell

is the inside wall of the plant cell

controls cell movement, providing a limited amount of support

found near the center of the cell

controls cell activities

a jelly-like material found throughout the cell

chemical reactions within the cell take place in the cytoplasm

distributed throughout the cytoplasm

found only in plant cells

this is where photosynthesis happens!

widely accepted explanation of the relationship between cells and living things:

• all living things are made of cells
• cells are the basic unit of life
• all cells are made from other cells

scientist who concluded that

all plants are made up of cells

scientist who concluded that

all animals are made of cells

scientist who proposed that

new cells are formed only from existing cells