science 8 chapter 1 unit review Flashcards
what are the 5 characherstics of living things
- living things respond to their environment
- living things need energy
- living things grow
- living things reproduce
- living thing must get rid of wastes
what does the eyepiece do
you look into it
where do you hold the microscope
the arm
what zooms is the coarse focus knob for
small or medium zoom
what zooms is the fine focus knob for
large zoom
what does the light source do
shines light on to the object
what does the stage do
holds the object
how do you see a object under the compound light microscope
magnified inverted and reversed
what is the abillity to distuingsh two dots or objects that are very close togeather is callled………..
resolving power
what is a organelle
a cell strucer in wich functions are carried out to ensures the cells survival
what is a cell membrane
the protection dome that surronds the newo. it controls or regulates the flow of materials in and out of the colony
what is a clyptopasym
contains organelles water and other life supporting materials
what does DNA stand for
deoxyribonucleic acid
when does cellear respirtatino occur
when the michtocondrian produce energy for the cell
what haoppens in the metabolisim
all the chemical reactions take place in the metabolisim
what assembels proteins
ribosomes
some ribosomes float in………
the clyptolasm
some ribososmes are attached to the……
endoplasmic recticuliam
the endoplasmic recticluiam is…….
a network of membrane coverd channels
the golgi body….
sorts the proteins and packs them into vesciles
wich is bigger vessicles or vaccoules
vacuoles
vescilles..
carry proteins nuetriens and water into out of and around the inside of the cell
vacuoles…
are temporary storage compartments that store waste
what are the two type of cells
prokaryotic cells and eukaryotic cells
lysosome….
the lysosome contains digestive chemicals that break down food particals cell wastes and worn out cell parts
cell theroys three main points
the cell is the basic unit of life
all organasims are composed of one or more cells
all cells come from other living cells
is bacteria a eukaryotic cell or a prokryaotic cell
prokryatoic cell
are viruses alive true or false
false
what is the first line of defense from viruses
the skin and linings of all your internal body systems
second line of defense
your body can mount an immune response to the attack and destroy the invaeder
