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37 Cards in this Set
- Front
- Back
spontaneous generation
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a theory that living things are produced from non-living things and ethers
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biogenesis
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a theory stating that life arises from living things
consistent with biblical truth (GEN 1:24-25) |
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biotechnology
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the use of organisms to manufacture products for people
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ecosystem
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a combo if all the communities and abiotic factors in an enviroment
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organism
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any living thing
1) will obey physical laws 2)will obey laws of chemistry |
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atom
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smallest particle of an element that has all the properties of that element
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theory
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one hypothesis that is supported by many experiments done over a period of time
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hypothesis
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possible explanation for an event or set of observations
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symbiosis
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a relationship in which 2 different organisms live in close association:
*mutualism *commensalism *parasitism |
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energy
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the ability to do work
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interdependence
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reliance on others for survival
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isotope
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atoms of the same element that have different # of neutrons (mass changes)
*radioactive isotopes= unstable nucleui |
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chemical bond
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attractive forces that 2 or more atoms together
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metabolism
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the sum of all the chemical processes that occur [within an organism]
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ion
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an atom that has lost or gained an electron
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ionic bond
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chemical bond
formed btwn ions w/ opposite charges (transfers electron) |
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covalent bond
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covalent bond
formed btwn atoms that share electrons [single->double->triple] |
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catalyst
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substance that alters the rate of a chemical reaction w/o being changed or used up
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homeostasis
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the maintenance of a stable set of internal conditionas [within an organism]
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solvent
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dissolves another substance
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solute
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a substance that is dissolved
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acid
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a compound that releases HYDROGEN
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base
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a compound that releases hydoxide
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cytoplasm
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all cells have
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cell membrane
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all cells have
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eukaryote
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-contains nucleus
-contains organelles |
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prokaryote
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no nucleus
no membrane-bound organelles |
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ribosomes
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make proteins
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ER
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involved in making and processing
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golgi apparatus
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functions in packaging and transporting
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mitochondria
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gerenerates energy by changing stored energy form food into useful forms (ATP)
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lysosome
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help break down large molecules
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chloroplast
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converts sunlight, water and carbon dioxide into energy
-->photosynthesis plant cells only |
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vacuoles
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storage compartments (water, ions...)
plant cells only |
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active transport
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movement across cell membrane WITH ENERGY
wital->homeostasis |
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passive transport
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movement across cell membrane W/O ENERGY
-->diffusion [high to low] -->osmosis [water] |
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bulk movement
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movement of large molecules across cell membrane by packaging them in membrane-bound sacs
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