domingo, 31 de mayo de 2009

cells

What procaryotic and eucaryotic cells have in common?
1.DNA as genetic material.
2.Ribosomes synthesize proteins.
3.Enzymes that catalyse metabolic reactions.
4.Similar metabolic pathways.
5.Membranes with similar or identical components and orgamizations.

What are the differences?
Procaryotic cells:
-No nucleus
-No membrane covered organelles.
-Circular DNA.
-Most referred to as bacteria.
-Has ribosomes.

Eucaryotic cells:
-Has a nucleus.
-Has membrane covered organelles.
-Linear DNA
-Are all other types of cells.
-Has organelles and organelles parts like chloroplast and mitochondria.

No hay comentarios:

Publicar un comentario