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43 Cards in this Set

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define cells
it has independent functioning a cytoplasm and alot of organells
define microscope and compound microscope
a compound microscope has more than one lens

microscope is an instrument that makes small things appear larger
what did robert hooke discover
robert hooke discovered cells through looking at microscpe at a slice of cork
what did leeuwanhoek discover
he discovered bacteria through looking at scrapings of teeth
state the cell theory
1.all living things have cells
2.cells come from cells
3.cells are building blocks of life
what is magnification and resolution??????
magnification-the ability to make things loook larger than they appear
resolution-the ability to clearly distingushthe individual parts of an object
how does a lens magnify???
it bends the light
what is a convex lens??
uses a beam of light to bring a point to focus
how does a electron microscope work?????
uses beams of electrons
who are schledien and schwan??????????
scledien and schwann had made up the cell theory
what is magnification and resolution??????
magnification-the ability to make things loook larger than they appear
resolution-the ability to clearly distingushthe individual parts of an object
how does a lens magnify???
it bends the light
what is a convex lens??
uses a beam of light to bring a point to focus
how does a electron microscope work?????
uses beams of electrons
who are schledien and schwan??????????
scledien and schwann had made up the cell theory
what is magnification and resolution??????
magnification-the ability to make things loook larger than they appear
resolution-the ability to clearly distingushthe individual parts of an object
how does a lens magnify???
it bends the light
what is a convex lens??
uses a beam of light to bring a point to focus
how does a electron microscope work?????
uses beams of electrons
who are schledien and schwan??????????
scledien and schwann had made up the cell theory
cell wall
structure that supports the cell and gives it a rigid structure
golgi boddies
recives proteins and distributes things to other parts to the cell
chloroplasts
captures energy from sunlight and uses it to produce food
vacuoles
like a storage area
lysosomes
chem. that break down large food particles into smaler food particles
cell membrane
controls which substances can enter or leave the cell
nucleus
directs all cell activities
ribosomes
its whetre proteins are made
e.r.
proteins and other materials are carried from one part of the cell to the other
mitochondria
produces most of the cells energy
chromatin
carries genetic information
2 plant organells not found in ac
chloralplasts and cell wall
bacteria differ than others???????????
single celled organism no neucleus
compare and contrast plant animal and bacteria cell
bacteria-very small no neucleus single celled organism
plant- bobx like structure green neucleus
animal cell-blob like shape has neucleus and big cell
do cells look the same???
no because not all cells do the same things
organic cimpound
has carbon which makes up all living things
inor-doesnt except for carbon dioxide
define element, atom, compound and molecule
atom-smallest unit of an element
element-a substance that cannot be broken down
compound-2 or more sub comb
molecule-smallest unit of most compounds
diff types and functions
proteins-form parts of the cell menbrane make upmany organells within the cell
nucleric acids- has instuctions that cell needs to carryout functions
carbohydrates-gives energy within the cell
lipids-store energy for later
what is enzyme
speeds up chemical reaction in a living thing
lipid starch sugar
lipids-brown paper bag
starch-iodine
sugar-bennedicts solution
what is cholestrol??
cholestrol- is a lipid narual made in your body,some foods contain excssive chosetrol which clogs artry snd also veins
what is dna?????
genetic material that carries info about organism and is passed from parent to offspring