CELLCELL

The structural & functional unit of The structural & functional unit of living beingliving being

Three typesThree types 1.Prokaryotic cell-e.g-Bacteria, Nostoc,etc1.Prokaryotic cell-e.g-Bacteria, Nostoc,etc

2.Mesokaryotic cell-e.g-Peridinium,Noctiluca2.Mesokaryotic cell-e.g-Peridinium,Noctiluca

3.Eukaryotic cell—e.g-All higher plant & 3.Eukaryotic cell—e.g-All higher plant & animal cell animal cell

ProkaryotsProkaryots

Prokaryotic cellProkaryotic cell BacteriaBacteria

Anabena,Anabena,

NostocNostoc

MesokaryotsMesokaryots

PeridiniumPeridinium

EukaryotsEukaryots

Cells have well defined nucleus & Cells have well defined nucleus & membrane bound cell-organellesmembrane bound cell-organelles

Plant cellPlant cell

Differentiate plant & animal cellDifferentiate plant & animal cell

Some more examples of EukaryotsSome more examples of Eukaryots

What is it ?What is it ?

IdentifyIdentify

ClamydomonousClamydomonous

Tissue organisation of leafTissue organisation of leaf

Plant tissuePlant tissue

ParenchymaParenchyma

Cell organellesCell organelles

NucleusNucleus

PlastidsPlastids

MitochondriaMitochondria

R E R & S E RR E R & S E R

Cell wallCell wall

Plasma membranePlasma membrane

Nucleus showing -DNA Nucleus showing -DNA

RibosomeRibosome

LysosomeLysosome

CentrosomeCentrosome

CytoskeletonCytoskeleton