Cells,+Tissues+and+Organ+Systems

Cells, Tissues and Organ Systems:

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[|David Suzuki- 59th minute]


 * CELLS**

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 * ANATOMY**

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 * ORIGIN OF LIFE**

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 * MICROORGANISMS**

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 * MICROSCOPES**

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 * BACTERIA**

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 * VIRUSES**

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 * STEM CELLS**

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 * ORGANS**

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-a meson is something small that holds protons and neutrons together in an atom -quarks are smaller than protons.quarks make up the smaller pieces of the proton.quarks is called flavor: up, down, charm, strange, top, and bottom -a protons is 10-15 meters.positive charge. Hydrogen has one proton. plutonium has 94 protons -neutron has no charge it is in the nucleas -a molecule is a combination of different atoms. EG: -an element is the combination of a same atom -are the building blocks of life -precursors to DNA -DNA stands for deoxyribonucleic acid -it is nucleic acid -produces special proteins that we need to live -alphabet of life -double helix -4 proteins
 * MESON**
 * QUARK**
 * ELECTRON**
 * -a electron is 10-18 of a meter**//. the purpose is to keep negative charge in the atom//
 * PROTON**
 * NEUTRON**
 * molecules**
 * ELEMENT**
 * PROTEINS**
 * DNA**