Illustrate the differences amongst a virus, a prokaryotic cell, and a eukaryotic cell.

Prokaryotic Cell

Eukaryotic cell

Size is 0.1- 5.0 um

Size is 5-100 um

Nucleus is absent

Nucleus is present

Membrane bound nucleus absent.

Membrane bound Nucleus is present.

One chromosome is present, but not true chromosome plastids

More than one number of chromosomes is present.

Unicellular

Multicellular

Lysosomes and Peroxisomes absent

Lysosomes and Peroxisomes present

Microtubules absent

Microtubules present

Endoplasmic reticulum absent

Endoplasmic reticulum present

Mitochondria absent

Mitochondria present

Cytoskeleton absent

Cytoskeleton present

Ribosomes smaller

Ribosomes larger

Vesicles present

Vesicles present

Golgi apparatus absent

Golgi apparatus present

Chloroplasts absent; chlorophyll scattered in the cytoplasm

Chloroplasts present in plants

Explanation:

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.