Hans and Zacharias Janssen
First compound microscope(2 lens)
Examined a cork; first person to describe a cell. (Modified microscope)
Realized plants were composed of cells(German botanist)
Realize that animals were composed of cells.
Realized cells duplicate to make new cells
All living organisms are made of cells
Cells are the basic unit of living organisms
Cells divide to make new cells
Semi Permeable substance
Selectively allows entities to pass through it. (Diffusion Lab)
Diffusion (Form of passive transport)
When an item passes through the cell membrane to form a state of equilibrium.
Starch, Water, Iodine
Chromosomes form; nuclear membrane disappears
Chromosomes line up in the center of the cell
Chromosomes split and are pulled to the ends of a cell
Nuclear Membrane reappears, chromosome uncoil
Produces z diploids (full set of DNA) occurs in body cells
Reproductive cells (gamets) result is 4 haploids cells ( half set of DNA)
Form of nuclear division
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.