lab 1 Flashcards
The study of life
Biology
A molecule that releases hydrogen ions in solution
Acid
A logarithmic scale that indicates the concentration of hydrogen ions. the scale goes from 0-14, with zero representing high concentration of H+ ions(acidic) and 14 representing lowest concentration (base)
pH Scale
movement of water across membranes to balance solute concentrations. water diffuses from a solution that is hypotonic
Osmosis
A logical process that argues from a specific instances to a general conclusion
Inductive Reasoning
Refers to process that occurs in the presence of oxygen; a form of metabolism that does require oxygen
Aerobic Process
Those organisms that do not require oxygen
Anaerobic Organisms
Refers to a process that occurs in the absence of oxygen; a form of metabolism that does not require oxygen.
Anaerobic Process
Variable that is being manipulated by the researcher in a scientific experiment
Independent variable
In biology a proposed explanation for a natural phenomenon based on previous observations or experimental studies
Hypothesis
The bio membrane that separated the internal contents of a cell form its external environment
Plasma Membrane
A molecule containing significant numbers of polar bonds
Polar molecule
Result expected from a particular test of a hypothesis if the hypothesis were true
Prediction
series of steps to test the validity of a hypothesis This approach often involves a comparison between control and the experimental groups
Scientific Method
A branch of mathematics that estimates the reliability of data
Statistics
a substance dissolved in a liquid
Solute
A liquid that contains one or more dissolved solutes
Solution
Concentration of hydrogen ions in a solution expressed usually in moles per liter or the pH units
Hydrogen Ion Concentration
A WEAK chemical attraction between a partially positive hydrogen atom of a polar molecule and a partially negative atom of another polar molecule
Hydrogen Bond
Response, any variable that responds or could respond, to changes in an independent variable
Dependent variable
In a solution, the process that occurs when a solute moves from a region of high concentration to a region of lower concentration
Diffusion
a molecule that when dissolved in water lowers the H+ concentration.
base
The sample in an experiment that is treated just like an experimental group
Control Groups
Loss of water
Dehydration
Facts and statistics collected together for reference or analysis
data
Making a prediction about an outcome of a test
Deductive Reasoning
The tendency to attract electrons to form a chemical bond
Electronegative
