bio ch 7 Flashcards
(40 cards)
what do you see through in a microscope
eye piece
which knob is the thick and which one is the thin one on a microscope
coarse is thick, fine is thin
What does the transmission electron microscope do
goes through specimen to see inside a cell
who was anton von Leeuwenhoek
made the first microscope and discovered microbes
what adjusts light in a microscope
diaphram
what holds the thing your looking at on a microscope
stage clips
what does scanning electron microsope do
electrons bounce of surface and magnifies the shape of cells
who was robert hooked
he came up with cells
who was robert brown
he discovered the nucleus
what did schlieden say:
what did schwann say:
plants are made of cells
animals are made of cells
what is the cell theory all three
- all iving things are made of cells
- cells are the basic unit of structure and function
3.cells came from prexising cells
what did rudolf virchow say
cells came from prexisiting cells
what is the differnece between prokaryot and eukaryotic cells.
prokaryot doesnt have a nucleus
what is the other thing besides nucleus that eukaryotic cells have
organelles
how is a plant cell different from animal cell
they have cell wall, chloroplasts, and a large vacuule(big space in the middle)
animals only have cell membrane and small vacuole
do amoebas have cell walls. why?
no,otherwise they couldnt change shape
what the cell membrane structure layers
bilipid layer
what is the membrane cell layer made of
phospholipid
what is the head end and tail end of the phospholipid
head is hydrophilic
tail is hydrophobic
is the head or the tail inside the lipid bilayer
the hydrophobic tail
where do things come out of in the membrane
the proteins
what are the nametage cells that say this cell belongs to me
carbohydrates
what are carbs mostly on
proteins and lipids(mostly proteins)
what info is on inside of nucleas
dna(in form of chromatin)
