made by: m.ahmed mazhar class:...
TRANSCRIPT
MADE BY: M.AHMED MAZHARCLASS: VII-S
An optical instrument having a magnifyinglens or combination of lenses for inspectingobjects too small to be seen.
To figure the total magnification of an imagethat we are viewing through the microscope isreally quite simple. To get the totalmagnification take the power of the objective(4X, 10X, 40x) and multiply by the power of theeyepiece, usually 10X.
Cells are the smallest unit of life that canreplicate independently, and are often calledthe "building blocks of life”.
Cell division is the process by which aparent cell divides into two or more daughtercells.Cell division usually occurs as part of a
larger cell cycle.
ANIMAL CELL PLANT CELL
CELL WALL Absent Present
SHAPE Round (irregular shape) Rectangular (fixed shape)
VACUOLE One or more small vacuoles One, large central vacuoletaking up 90% of cell volume.
CHLOROPLASTS Animal cells don't havechloroplasts
Plant cells have chloroplastsbecause they make their ownfood.
PLASMA MEMBRANE Only cell membrane Cell wall and a cell membrane
Nerve CellsThey carry messages around our body
Red Blood Cells It transport oxygen through out the body
White Blood CellsThey protect body against disease
Palisade CellsIt helps in photosynthesis
BRAINIt is the controller of body and receives messages.
HEARTIt pumps blood throughout the body .
LUNGSThey take in oxygen and expels carbon dioxide .
KIDNEYSThey filter water and salts and produce urine.
STOMACHIt receives food and sends it into small intestine.
LIVERIt has main role in digestion of food.
RootAbsorbs water and minerals
StemSupports/ holds upTransport water and mineral
LeafPhotosynthesis
FlowerReproduce
FruitSeed dispersal
Organ transplant can cause severeproblems, if the organ donor has someinfectious disease so it transfer to therecipient.