Flashcards in Unit 1A- Biomolecules, Cells Deck (48)
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Homeostasis
Internal stable environment
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pH scale
System of measurement that measure the concentration of H+
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Proton
Positive charged particle in an atom, found in the nucleus
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Carbohydrate
ex. is a sugar; Made up of C, H, and O with the H and O in a 2:1 ratio; made up of monosaccharides
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Acid
compound that releases H+; 0-6 on a pH scale
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Lipid
example is a fat, oil, wax; made up of C,H, and O with the H O being in a much greater ratio than 2:1 ; made up of fatty acids and a glycerol molecule
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Nucleic Acid
example is DNA/RNA; made up of C,H,O,N, P; large complex molecule made up of a sugar, phosphate, and a nitrogen base
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Protein
made up of amino acids; C,H,O,N; examples is muscle, enzymes
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Solvent
Substance that dissolves another
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Independent Variable
Variable that is intentionally changed or manipulated in an experiment
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Dependent Variable
Variable in an experiment that is observed or responds to the change
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Monosaccharide
Single sugar molecule; monomer of a carbohydrate
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Disaccharide
Double sugar molecule
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Base
AKA alkaline; compound that releases OH- ; 8-14 on the pH scale
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Neutral
OH- and H+ ions are equal; 7 on the pH scale
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Neutron
particle in the nucleus of an atom that does not have a charge
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Spontaneous Generation
example- flies come from meat; living things come from nonliving things; disproved partly by Redi & and totally by Pasteur
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Biogenesis
living things come from other living things
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Enzyme
a protein that acts as a catalyst to speed up a reaction by lowering the activation energy
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Polysaccharide
many sugared molecule
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Solution
Mixture of 2 or more substances in which they are evenly distributed
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Theory
Based on scientific fact but hasn't been proven
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Ribonucleic Acid
RNA; contains ribose sugar
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Deoxyribonucleic Acid
DNA; contains deoxyribose sugar
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Electron
Negatively charged particle located outside of the nucleus of an atom
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Ion
Atom that gains or loses electrons
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Covalent Bond
Process by which atoms combine by sharing electrons
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Ionic Bond
Process by which atoms combine by transferring electrons
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Atom
Basic unit of matter
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