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.

circulatory system

The function of the circulatory system are:

-Carry oxygen from the lungs to the tissues and carbondioxide from the tissues to the lungs.

-Help in fighting infections.

-Helps to maintain the Ph of the blood.

-Parts of the circulatory system:

*Heart: is a muscular organ responsible for pumping blood through the blood vessels by rhythmic contractions.

*Blood vessels:

-Arteries: carry the blood away from the heart.

-Capillaries: enable the actual exchange of water and chemicals between the blood and the tissues.

-Veins: carry blood from the capillaries back towards the heart.

*Blood: is a specialized bodily fluid that delivers necessary substances to the body's cells and transports waste products away from those same cells.