Define cell and atom​

The key difference between cell and atom is that a cell is made of molecules whereas atoms make up molecules.

Cells are the smallest functioning unit in a living organism. It contains many macromolecules. Meanwhile, atoms make up these macromolecules. Hence, an atom is the smallest unit of matter. Usually, a cell is on the micrometre scale while an atom is in the angstrom scale.

CONTENTS

1. Overview and Key Difference

2. What is a Cell

3. What is an Atom

4. Side by Side Comparison – Cell vs Atom in Tabular Form

5. Summary

Explanation:

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prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

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.