biology year nine Flashcards
if the prefix is centi what do you multiply the unit by
0.01
if the prefix is milli what do you multiply the unit by
0.001
if the prefix is micro what do you multiply the unit by
0.000001
if the prefix is nano what do you multiply the unit by
0.000000001
what does the nucleus do ?
the nucleus caries DNA its enclosed in a nuclear membrane it helps grow more cells
what does cytoplasm do ?
it contains enzymes chemical reactions can occur in it
what does the cell membrane do
it controls what enters and leaves the cell
what does mitochondria do
its were aerobic respiration reaction occurs
what does ribosomes do
its were photo synthesis occurs
what do chloroplasts do
its were photo synthesis occurs it has chlorophyll in it witch makes the leaf green
what does vacuole do
improves cells rigidity
what does the cell wall do
provides strength to a cell
what are plasmids
smal rings of dna
