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Acid- Molecules tending to raise the concentration of hydrogen ions in a solution and lower its pH numerically.
Base- Molecules tending to lower the concentration of hydrogen ions in a solution and raise its pH numerically.
Buffer- Substance or group of substances that tend to resist pH changes of a solution, thus stabilizing its relative acidity and basicity.
Carbonic Anhydrase- Enzyme in red blood cells that speeds the formation of carbonic acid from water and carbon dioxide.
Cohesion-The sticking together of particles of the same substance.
Covalent Bond- Chemical bond in which atoms share one pair of electrons.
Dipole- A pair of equal and oppositely charged or magnetized poles separated by a distance
Dissociate- The splitting of a molecule into smaller molecules, atoms, or ions, esp. by a reversible process.
Endocytosis- Process by which substances are moved into the cell from the environment.
Eukaryotic- Type of cell that has a membrane bound nucleus and membranous organelles.
Exocytosis- Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicles contents are released outside the cell.Heat Capacity- The number of heat units needed to raise the temperature by one degree.
Hydrogen Bonds- Weak bond that forms between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule or between parts of the same molecule
Hydrophilic- Type of molecule that interacts with water by dissolving in water and/or forming hydrogen bonds with water molecules.
Hydrophobic- Type of molecule that does not interact with water because it is nonpolar.
Ionic Bond- Chemical bond in which ions are attracted to one another by opposite charges.
Mitosis- Type of cell division in which daughter cells receive the exact chromosome and genetic makeup of the parent cell.
Organic Molecule- Molecule that always contains carbon, hydrogen and often oxygen.
pH scale- Measure of the hydrogen ion concentration [H+]; any pH below 7 is acidic, any pH above 7 is basic.
Phospholipid- Molecule that forms the bilayer of the cell's membrane; has a polar, hyrdophilic head, bonded to two nonpolar, hydrophobic tails.
Pinocytosis- Process by which vesicle formation bring macromolecules into the cell.
Prokaryotic- Lacking a membrane bound nucleus and organelles.
Selectively Permeable- Ability of the plasma membrane to regulate the passage of substances in and out of the cell, allowing some to pass through and preventing the passage of others.
Acid- Molecules tending to raise the concentration of hydrogen ions in a solution and lower its pH numerically.
Base- Molecules tending to lower the concentration of hydrogen ions in a solution and raise its pH numerically.
Buffer- Substance or group of substances that tend to resist pH changes of a solution, thus stabilizing its relative acidity and basicity.
Carbonic Anhydrase- Enzyme in red blood cells that speeds the formation of carbonic acid from water and carbon dioxide.
Cohesion-The sticking together of particles of the same substance.
Covalent Bond- Chemical bond in which atoms share one pair of electrons.
Dipole- A pair of equal and oppositely charged or magnetized poles separated by a distance
Dissociate- The splitting of a molecule into smaller molecules, atoms, or ions, esp. by a reversible process.
Endocytosis- Process by which substances are moved into the cell from the environment.
Eukaryotic- Type of cell that has a membrane bound nucleus and membranous organelles.
Exocytosis- Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicles contents are released outside the cell.Heat Capacity- The number of heat units needed to raise the temperature by one degree.
Hydrogen Bonds- Weak bond that forms between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule or between parts of the same molecule
Hydrophilic- Type of molecule that interacts with water by dissolving in water and/or forming hydrogen bonds with water molecules.
Hydrophobic- Type of molecule that does not interact with water because it is nonpolar.
Ionic Bond- Chemical bond in which ions are attracted to one another by opposite charges.
Mitosis- Type of cell division in which daughter cells receive the exact chromosome and genetic makeup of the parent cell.
Organic Molecule- Molecule that always contains carbon, hydrogen and often oxygen.
pH scale- Measure of the hydrogen ion concentration [H+]; any pH below 7 is acidic, any pH above 7 is basic.
Phospholipid- Molecule that forms the bilayer of the cell's membrane; has a polar, hyrdophilic head, bonded to two nonpolar, hydrophobic tails.
Pinocytosis- Process by which vesicle formation bring macromolecules into the cell.
Prokaryotic- Lacking a membrane bound nucleus and organelles.
Selectively Permeable- Ability of the plasma membrane to regulate the passage of substances in and out of the cell, allowing some to pass through and preventing the passage of others.