biology of the cell
Terms
undefined, object
copy deck
- All living things are made up of what and what is the one exception?
- cells exception:virile
- what is the definition of a cell?
- basic unit of structure and function of a living thing
- what is the first recorded use of magnifying lenses?
- cloth trade: magnified yard and fabric to see grade
- what two instruments were produced?
- microscope and telescope
- What did the Janssen brothers do in 1590?
- Produced compound microscope, took tube and put glass on both ends.
- What did Anton Van Leeuwenhoek do in 1650?
- used microscope to look at living things(animal cules) or tiny animals
- what did robert hooke do in 1665?
- observved cells and named them after the cells that monks stayed in
- what did robert brown do in 1833?
- discovered the nucleus(dark spot in the center) the core
- what did matthias schleiden do?
- purposed that all plants are made of cells
- what did theodor schwann do in 1839?
- purposed that all animals are made of cells
- what did rudolf virchon do in 1855?
- purposed that cells come from pre existing cells (biogenesis)
- what are the three cell theorys?
-
1.all living things are composed of cells
2.cells are the basic structure and cunction in living thing
3.all cells come from pre existing cells - what are the two other names for the cell membrance?
- plasma membrane and the plasmalemma
- definition of cell membrane
- boundary or barrier (holds things together)
- function of cell membrane
- regulates what goes in and out of a cell
- what is the microvilli in the cell membrane?
- cells can interlock with microvilli attach to neighboring cells; increase surface area when streched
- what is the ultra structure of a cell membrane?
-
"fluid mosaic model"
1.bilayer of lipids=two layers of the lollipop looking things
2.globular proteins=long chain of amino acids that waded up - what are the types of globular proteins?
-
through and through proteins: proteins that extend all the way through the two layers of lipids
carrier molecules:transport ions through the membrane
partial proteins:dont go all the way through the membrane - where is the cell wall?
- outside of the cell membrane
- what are the types of cells that have cell walls?
- plants, algae, bacteria, fungi, protozoa
- what is the function of the cell wall?
- to protect and support