science discovering cells Flashcards
the basic unit of structure and function in living things
cells
the invention of the _________ made it possible for people to discover and learn about cells
microcope
what was robert hookes contribution to science
he looked at cork and discover cells
what was Anton van Leeuwenhoek contribution to science
he observed unicellular organisms and called them animal cules
cell theory states 1,2,3
all living things are composed of cells
cells are the basic unit of structure and function in living things
all cells are produced from other cells
light microscopes use ____________ lenses to magnify images
convex
a light microscope that uses more than one lens is known as a __________________ light microscope
compound
organelle
a structure that performs jobs in cells
cell wall
prevents expansion when water enters cells
cell membrane
lipid bi layer that controls what enters and exits the cells
nucleus
contains cell DNA and regulates that activity of the cells
nuclear envelope
controls what enter and exits the nucleus/ the outside
nucleolus
the center/ produces ribosomes
mitochondria
regulates cell life/ ATP=energy production
rough ER
adds groups to proteins then transports them to ribosomes then transports them to the golgi body
