Term
organization of living things
atoms-are the smallest chemical units
molecules-are a group of atoms working together
organelles-a group of molecules working together
cells-a group of organelles working together
tissues-a group of similar cells working together
organs-are a group of different tissues working together
organ systems-are a group of organs working together
organism-is an individual |
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Definition
| organization of living things |
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| autoregulation (intrinsic) |
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Definition
| automatic response in a cell, tissue, or organ |
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| responses controlled by nervous and endocrine systems |
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Definition
| response of the effector reinforces the stimulus |
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Definition
| response of the effector negates the stimulus |
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Definition
| divided by the diaphragm into the thoracic cavity and the abdominopelvic cavity |
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Definition
| consists of the parietal and visceral layer |
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Definition
| divided by the mediastium into 2 pleural cavities |
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Definition
| all matter is composed of atoms. Protons and neutrons are found on the atom's nucleus while electrons circle the nucleus |
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Definition
| subatomic particle with a positive charge found within the nucleus of an atom |
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Definition
| subatomic particle with no net charge, mass slightly larger than proton. |
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Definition
| subatomic particle that carries a negative electrical charge |
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Definition
| atoms of an element that possess a different number of neurons, have the same atomic # b/c # of protons stays the same |
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Definition
the sum of the masses of protons and neutrons
-1 proton-1.009 daltons
-1 neutron-1.007 daltons
-1 electron-1/1840 of a dalton-negligible |
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Term
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Definition
| refers to the area around a nucleus where an electron is found. chemical behavior of an atom is determined by the number and arrangement of this |
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Definition
| contains more protons than electrons, and carries a positive charge |
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Definition
| contains fewer protons than electrons, and carries a negative charge |
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