Revision

.can view living specimens
. magnify to 2000×
.low resolution-200nm

. can't view living specimens
.magnify at 2,000,000×
.High resolution -0.2nm

.nucleus-control the cells activities
.cell membrane -control the passage of the substance in and out of the cell
.cytoplasm-liquide gel where chemical reaction take place
.mitochondrion-where areobic respiration accur ➡️
realising energy for the cell
.Ribosome-protein synthesis

nucleus-control the cells activitie
. cell membrane -control the passage of the substance in and out of the cell
.cytoplasm-liquide gel where chemical reaction take place
.mitochondrion-where areobic respiration accur ➡️
realising energy for the cell
Ribosome-protein synthesis
.chloroplast-contain chlorophyll-obsorb light for photosynthesis
.vacule-filled with the cell sap
.cell wall-stregthens the cell and give it support

-Eukaryotic-Have Nucleus
common feature
^cell membrane
^cytoplasm
^genetic material inside Nucleus
-Prokaryotic-Have no nucleus

-sperm-
.nucleus
.tail to swim to the egg
.acrosome contain digestive enzymes

-mucle-
.special protein for contraction
.many mitochondria to release energy for contraction
.can store glycogen which can be broken down into glucose for respiration

-Nerve-
.denaites ➡️connect to other ce
.long axen➡️ carry impulsese
.nerve ending release chemicals

-root hair cell -
. permanent vacuole to speed up osmosis
.large surface area for great obsorbtion
.mitochondria to release energy for active transport
-xylem-
.spirals of lignin strengthen the cells & support the plant
.long hollow tubes - easy movement of water&minerlions
-phloem-
.comparisob cells have mitochondria to release energy for movement
.sieve plates to allow food to move easily

.definition-praticle moving from an area of hight concentration to an area of low concentration

-movement of water
-from a hight concentration to a low concentration
-throught the partially permenble membrane