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.